Reference ranges for blood tests

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Template:Short description Lua error in package.lua at line 80: module 'Module:Sidebar/configuration' not found. Reference ranges (reference intervals) for blood tests are sets of values used by a health professional to interpret a set of medical test results from blood samples. Reference ranges for blood tests are studied within the field of clinical chemistry (also known as "clinical biochemistry", "chemical pathology" or "pure blood chemistry"), the area of pathology that is generally concerned with analysis of bodily fluids.[1][2][3]

Blood test results should always be interpreted using the reference range provided by the laboratory that performed the test.[4]

Interpretation

A reference range is usually defined as the set of values 95 percent of the normal population falls within (that is, 95% prediction interval).[5] It is determined by collecting data from vast numbers of laboratory tests.[6][7]

Plasma or whole blood

In this article, all values (except the ones listed below) denote blood plasma concentration, which is approximately 60–100% larger than the actual blood concentration if the amount inside red blood cells (RBCs) is negligible. The precise factor depends on hematocrit as well as amount inside RBCs. Exceptions are mainly those values that denote total blood concentration, and in this article they are:[8]

  • All values in Hematology – red blood cells (except hemoglobin in plasma)
  • All values in Hematology – white blood cells
  • Platelet count (Plt)

A few values are for inside red blood cells only:

  • Vitamin B9 (folic acid/folate) in red blood cells
  • Mean corpuscular hemoglobin concentration (MCHC)

Units

Arterial or venous

If not otherwise specified, a reference range for a blood test is generally the venous range, as the standard process of obtaining a sample is by venipuncture. An exception is for acid–base and blood gases, which are generally given for arterial blood.[12]

Still, the blood values are approximately equal between the arterial and venous sides for most substances, with the exception of acid–base, blood gases and drugs (used in therapeutic drug monitoring (TDM) assays).[13] Arterial levels for drugs are generally higher than venous levels because of extraction while passing through tissues.[13]

Usual or optimal

Reference ranges are usually given as what are the usual (or normal) values found in the population, more specifically the prediction interval that 95% of the population fall into. This may also be called standard range. In contrast, optimal (health) range or therapeutic target is a reference range or limit that is based on concentrations or levels that are associated with optimal health or minimal risk of related complications and diseases. For most substances presented, the optimal levels are the ones normally found in the population as well. More specifically, optimal levels are generally close to a central tendency of the values found in the population. However, usual and optimal levels may differ substantially, most notably among vitamins and blood lipids, so these tables give limits on both standard and optimal (or target) ranges. In addition, some values, including troponin I and brain natriuretic peptide, are given as the estimated appropriate cutoffs to distinguish healthy people from people with specific conditions, which here are myocardial infarction and congestive heart failure, respectively, for the aforementioned substances.[14][15][16]

Variability

Script error: No such module "labelled list hatnote". References range may vary with age, sex, race, pregnancy,[17] diet, use of prescribed or herbal drugs and stress. Reference ranges often depend on the analytical method used, for reasons such as inaccuracy, lack of standardisation, lack of certified reference material and differing antibody reactivity.[18] Also, reference ranges may be inaccurate when the reference groups used to establish the ranges are small.[19]

Sorted by concentration

By mass and molarity

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Hormones predominate at the left part of the scale, shown with a red at ng/L or pmol/L, being in very low concentration. There appears to be the greatest cluster of substances in the yellow part (μg/L or nmol/L), becoming sparser in the green part (mg/L or μmol/L). However, there is another cluster containing many metabolic substances like cholesterol and glucose at the limit with the blue part (g/L or mmol/L).[citation needed]

The unit conversions of substance concentrations from the molar to the mass concentration scale above are made as follows:

  • Numerically:
molar concentration×molar mass=mass concentration
  • Measured directly in distance on the scales:
log10molar mass1000=distance to right (decades),

where distance is the direct (not logarithmic) distance in number of decades or "octaves" to the right the mass concentration is found. To translate from mass to molar concentration, the dividend (molar mass and the divisor (1000) in the division change places, or, alternatively, distance to right is changed to distance to left. Substances with a molar mass around 1000g/mol (e.g. thyroxine) are almost vertically aligned in the mass and molar images. Adrenocorticotropic hormone, on the other hand, with a molar mass of 4540,[20] is 0.7 decades to the right in the mass image. Substances with molar mass below 1000g/mol (e.g. electrolytes and metabolites) would have "negative" distance, that is, masses deviating to the left. Many substances given in mass concentration are not given in molar amount because they haven't been added to the article.

The diagram above can also be used as an alternative way to convert any substance concentration (not only the normal or optimal ones) from molar to mass units and vice versa for those substances appearing in both scales, by measuring how much they are horizontally displaced from one another (representing the molar mass for that substance), and using the same distance from the concentration to be converted to determine the equivalent concentration in terms of the other unit. For example, on a certain monitor, the horizontal distance between the upper limits for parathyroid hormone in pmol/L and pg/mL may be 7 cm, with the mass concentration to the right. A molar concentration of, for example, 5 pmol/L would therefore correspond to a mass concentration located 7 cm to the right in the mass diagram, that is, approximately 45 pg/mL.

By units

Units do not necessarily imply anything about molarity or mass.

File:Reference ranges for blood tests - by units.png

A few substances are below this main interval, e.g. thyroid stimulating hormone, being measured in mU/L, or above, like rheumatoid factor and CA19-9, being measured in U/mL.

By enzyme activity

File:Reference ranges for blood tests - by enzyme activity.png

White blood cells

File:Reference ranges for blood tests - white blood cells.png

Sorted by category

Ions and trace metals

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Test Lower limit Upper limit Unit* Comments
Sodium (Na) 135,[21] 137[10][22] 145,[10][22] 147[21] mmol/L or mEq/L[21] See hyponatremia or hypernatremia
310,[23] 320[23] 330,[23] 340[23] mg/dL
Potassium (K) 3.5,[10][21] 3.6[22] 5.0,[10][21][22] 5.1 mmol/L or mEq/L[21] See hypokalemia or hyperkalemia
14[24] 20[24] mg/dL
Chloride (Cl) 95,[21] 98,[25] 100[10] 105,[21] 106,[25] 110[10] mmol/L or mEq/L[21] See hypochloremia or hyperchloremia
340[26] 370[26] mg/dL
Ionized calcium (Ca) 1.03,[27] 1.10[10] 1.23,[27] 1.30[10] mmol/L See hypocalcaemia or hypercalcaemia
4.1,[28] 4.4[28] 4.9,[28] 5.2[28] mg/dL
Total calcium (Ca) 2.1,[21][29] 2.2[10] 2.5,[10][29] 2.6,[29] 2.8[21] mmol/L
8.4,[21] 8.5[30] 10.2,[21] 10.5[30] mg/dL
Total serum iron (TSI) – male 65,[31] 76[22] 176,[31] 198[22] μg/dL See hypoferremia or the following: iron overload (hemochromatosis), iron poisoning, siderosis, hemosiderosis, hyperferremia
11.6,[32][33] 13.6[33] 30,[32] 32,[33] 35[33] μmol/L
Total serum iron (TSI) – female 26,[22] 50[31] 170[22][31] μg/dL
4.6,[33] 8.9[32] 30.4[32] μmol/L
Total serum iron (TSI) – newborns 100[31] 250[31] μg/dL
18[33] 45[33] μmol/L
Total serum iron (TSI) – children 50[31] 120[31] μg/dL
9[33] 21[33] μmol/L
Total iron-binding capacity (TIBC) 240,[31] 262[22] 450,[31] 474[22] μg/dL
43,[33] 47[33] 81,[33] 85[33] μmol/L
Transferrin 190,[34] 194,[10] 204[22] 326,[10] 330,[34] 360[22] mg/dL
25[35] 45[35] μmol/L
Transferrin saturation 20[31] 50[31] %
Ferritin – Males and postmenopausal females 12[36] 300[36][37] ng/mL or μg/L
27[38] 670[38] pmol/L
Ferritin – premenopausal females 12[36] 150[36] – 200[37] ng/mL or μg/L
27[38] 330[38] – 440[38] pmol/L
Ammonia 10,[39] 20[40] 35,[39] 65[40] μmol/L See hypoammonemia and hyperammonemia
17,[41] 34[41] 60,[41] 110[41] μg/dL
Copper (Cu) 70[30] 150[30] μg/dL See hypocupremia or hypercupremia
11[42][43] 24[42] μmol/L
Ceruloplasmin 15[30] 60[30] mg/dL
1[44] 4[44] μmol/L
Phosphate (HPO42−) 0.8 1.5[45] mmol/L See hypophosphatemia or hyperphosphatemia
Inorganic phosphorus (serum) 1.0[21] 1.5[21] mmol/L
3.0[21] 4.5[21] mg/dL
Zinc (Zn) 60,[46] 72[47] 110,[47] 130[46] μg/dL See zinc deficiency or zinc poisoning
9.2,[48] 11[10] 17,[10] 20[48] μmol/L
Magnesium 1.5,[30] 1.7[49] 2.0,[30] 2.3[49] mEq/L or mg/dL See hypomagnesemia or hypermagnesemia
0.6,[50] 0.7[10] 0.82,[50] 0.95[10] mmol/L
  • Note: Although 'mEq' for mass and 'mEq/L' are sometimes used in the United States and elsewhere, they are not part of SI and are now considered redundant.

Acid–base and blood gases

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Acid–base and blood gases are among the few blood constituents that exhibit substantial difference between arterial and venous values.[13] Still, pH, bicarbonate and base excess show a high level of inter-method reliability between arterial and venous tests, so arterial and venous values are roughly equivalent for these.[51]

Test Arterial/Venous Lower limit Upper limit Unit
pH Arterial 7.34,[22] 7.35[21] 7.44,[22] 7.45[21]
Venous 7.31[52] 7.41[52]
[H+] Arterial 36[21] 44[21] nmol/L
3.6[53] 4.4[53] ng/dL
Base excess Arterial & venous[52] −3[52] +3[52] mEq/L
Oxygen partial pressure (pO2) Arterial pO2 10,[21] 11[54] 13,[54] 14[21] kPa
75,[21][22] 83[30] 100,[22] 105[21] mmHg or torr
Venous 4.0[54] 5.3[54] kPa
30[52] 40[52] mmHg or torr
Oxygen saturation Arterial 94,[52] 95,[25] 96[30] 100[25][30] %
Venous Approximately 75[25]
Carbon dioxide partial pressure (pCO2) Arterial PaCO2 4.4,[21] 4.7[54] 5.9,[21] 6.0[54] kPa
33,[21] 35[22] 44,[21] 45[22] mmHg or torr
Venous 5.5,[54] 6.8[54] kPa
41[52] 51[52] mmHg or torr
Absolute content of carbon dioxide (CO2) Arterial 23[52] 30[52] mmol/L
100[55] 132[55] mg/dL
Bicarbonate (HCO3−) Arterial & venous 18[30] 23[30] mmol/L
110[56] 140[56] mg/dL
Standard bicarbonate (SBCe) Arterial & venous 21, 22[21] 27, 28[21] mmol/L or mEq/L[21]
134[56] 170[56] mg/dL

Liver function

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Test Patient type Lower limit Upper limit Unit Comments
Total protein (TotPro) 60,[21] 63[22] 78,[21] 82,[22] 84[30] g/L See serum total protein Interpretation
Albumin 35[21][57] 48,[22] 55[21] g/L See hypoalbuminemia
3.5[22] 4.8,[22] 5.5[21] U/L
540[58] 740[58] μmol/L
Globulins 23[21] 35[21] g/L
Total bilirubin 1.7,[59] 2,[21] 3.4,[59] 5[10] 17,[21][59] 22,[59] 25[10] μmol/L
0.1,[21] 0.2,[22] 0.29[60] 1.0,[21][30] 1.3,[22] 1.4[60] mg/dL
Direct/conjugated bilirubin 0.0[21] or N/A[10] 5,[21] 7[10][59] μmol/L
0[21][22] 0.3,[21][22] 0.4[30] mg/dL
Alanine transaminase (ALT/ALAT[10]) 5,[61] 7,[22] 8[21] 20,[21] 21,[25] 56[22] U/L Also called serum glutamic pyruvic transaminase (SGPT)
Female 0.15[10] 0.75[10] μkat/L
Male 0.15[10] 1.1[10]
Aspartate transaminase (AST/ASAT[10]) Female 6[62] 34[62] IU/L Also called
serum glutamic oxaloacetic transaminase (SGOT)
0.25[10] 0.60[10] μkat/L
Male 8[62] 40[62] IU/L
0.25[10] 0.75[10] μkat/L
Alkaline phosphatase (ALP) 0.6[10] 1.8[10] μkat/L
Female 42[61] 98[61] U/L
Male 53[61] 128[61]
Gamma glutamyl transferase (GGT) 5,[61] 8[22] 40,[61] 78[22] U/L
Female 0.63[63] μkat/L
Male 0.92[63] μkat/L

Cardiac tests

Test Patient type Lower limit Upper limit Unit Comments
Creatine kinase (CK) Male 24,[64] 38,[22] 60[61] 174,[30] 320[61] U/L or ng/mL
0.42[65] 1.5[65] μkat/L
Female 24,[64] 38,[22] 96[30] 140,[30] 200[61] U/L or ng/mL
0.17[65] 1.17[65] μkat/L
CK-MB 0 3,[22] 3.8,[10] 5[61] ng/mL or μg/L[10]
Myoglobin Female 1[66] 66[66] ng/mL or μg/L
Male 17[66] 106[66]
Cardiac troponin T (low sensitive) 0.1[14] ng/mL 99th percentile cutoff
Cardiac troponin I

(high sensitive)

0.03[14] ng/mL 99th percentile cutoff
Cardiac troponin T (high sensitive) Male 0.022[14] ng/mL 99th percentile cutoff
Female 0.014[14] ng/mL 99th percentile cutoff
newborn/infants not established more than adults [67][68]
Brain natriuretic peptide (BNP)
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-more detailed ranges in BNP article
Interpretation Range / Cutoff
Congestive heart failure unlikely < 100 pg/mL[15][16]
"Gray zone" 100–500 pg/mL[15][16]
Congestive heart failure likely > 500 pg/mL[15][16]
NT-proBNP
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-more detailed ranges in NT-proBNP article
Interpretation Age Cutoff
Congestive heart failure likely < 75 years > 125 pg/mL[69]
> 75 years > 450pg/mL[69]

Lipids

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Test Patient type Lower limit Upper limit Unit Therapeutic target
Triglycerides 10–39 years 54[30] 110[30] mg/dL < 100 mg/dL[70]
or 1.1 mmol/L[70]
0.61[71] 1.2[71] mmol/L
40–59 years 70[30] 150[30] mg/dL
0.77[71] 1.7[71] mmol/L
> 60 years 80[30] 150[30] mg/dL
0.9[71] 1.7[71] mmol/L
Total cholesterol 3.0,[72] 3.6[21][72] 5.0,[10][73] 6.5[21] mmol/L < 3.9 mmol/L[70]
120,[22] 140[21] 200,[22] 250[21] mg/dL < 150 mg/dL[70]
HDL cholesterol Female 1.0,[74] 1.2,[10] 1.3[72] 2.2[74] mmol/L > 1.0[74] or 1.6[72] mmol/L
40[75] or 60[76] mg/dL
40,[75] 50[77] 86[75] mg/dL
HDL cholesterol Male 0.9[10][74] 2.0[74] mmol/L
35[75] 80[75] mg/dL
LDL cholesterol
(Not valid when
triglycerides >5.0 mmol/L)		 2.0,[74] 2.4[73] 3.0,[10][73] 3.4[74] mmol/L < 2.5 mmol/L[74]
80,[75] 94[75] 120,[75] 130[75] mg/dL < 100 mg/dL[75]
LDL/HDL quotient n/a 5[10] (unitless)

Tumour markers

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Test Patient type Cutoff Unit Comments
Alpha fetoprotein (AFP) 44[22] ng/mL or μg/L Hepatocellular carcinoma or testicular cancer
Beta human chorionic gonadotrophin (β-hCG) In males and non-pregnant females 5[22] IU/L or mU/mL choriocarcinoma
CA19-9 40[22] U/mL Pancreatic cancer
CA-125 30,[78] 35[79] kU/L or U/mL
Carcinoembryonic antigen (CEA) Non-smokers, 50 years 3.4,[10] 3.6[80] μg/L
Non-smokers, 70 years 4.1[80]
Smokers 5[81]
Prostate specific antigen (PSA) 40–49 years 1.2–2.9[82] μg/L[10][22] or ng/mL[30] More detailed cutoffs in PSA – Serum levels
70–79 years, non-African-American 4.0–9.0[82]
70–79 years, African-American 7.7–13[82]
PAP 3[30] units/dL (Bodansky units)
Calcitonin 5,[83] 15[83] ng/L or pg/mL Cutoff against medullary thyroid cancer[83]
More detailed cutoffs in Calcitonin article

Endocrinology

Thyroid hormones

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Test Patient type Lower limit Upper limit Unit
Thyroid stimulating hormone
(TSH or thyrotropin)		 Adults –
standard range		 0.3,[10] 0.4,[22] 0.5,[30] 0.6[84] 4.0,[10] 4.5,[22] 6.0[30] mIU/L or μIU/mL
Adults –
optimal range		 0.3,[85] 0.5[86] 2.0,[86] 3.0[85]
Infants 1.3[87] 19[87]
Free thyroxine (FT4)
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-more detailed ranges in
Thyroid function tests article
 Normal adult 0.7,[88] 0.8[22] 1.4,[88] 1.5,[22] 1.8[89] ng/dL
9,[10][90] 10,[91] 12[92] 18,[10][90] 23[92] pmol/L
Child/Adolescent
31 d – 18 y		 0.8[88] 2.0[88] ng/dL
10[90] 26[90] pmol/L
Pregnant 0.5[88] 1.0[88] ng/dL
6.5[90] 13[90] pmol/L
Total thyroxine 4,[91] 5.5[22] 11,[91] 12.3[22] μg/dL
60[91][92] 140,[91] 160[92] nmol/L
Free triiodothyronine (FT3) Normal adult 0.2[91] 0.5[91] ng/dL
3.1[93] 7.7[93] pmol/L
Children 2-16 y 0.1[94] 0.6[94] ng/dL
1.5[93] 9.2[93] pmol/L
Total triiodothyronine 60,[22] 75[91] 175,[91] 181[22] ng/dL
0.9,[10] 1.1[91] 2.5,[10] 2.7[91] nmol/L
Thyroxine-binding globulin (TBG) 12[22] 30[22] mg/L
Thyroglobulin (Tg) 1.5[91] 30[91] pmol/L
1[91] 20[91] μg/L

Sex hormones

Script error: No such module "labelled list hatnote". The diagrams below take inter-cycle and inter-woman variability into account in displaying reference ranges for estradiol, progesterone, FSH and LH.

File:Hormones estradiol, progesterone, LH and FSH during menstrual cycle.png
Levels of estradiol (the main estrogen), progesterone, luteinizing hormone and follicle-stimulating hormone during the menstrual cycle.[95]
Test Patient type Lower limit Upper limit Unit
Dihydrotestosterone adult male 1.0[96] 2.9[97] nmol/L
30 85 ng/dL
Testosterone Male, overall 8,[98] 10[99] 27,[98] 35[99] nmol/L
230,[100] 300[101] 780–1000[100][101] ng/dL
Male < 50 years 10[10] 45[10] nmol/L
290[100] 1300[100] ng/dL
Male > 50 years 6.2[10] 26[10] nmol/L
180[100] 740[100] ng/dL
Female 0.7[99] 2.8–3.0[99][10] nmol/L
20[101] 80–85[101][100] ng/dL
17α-Hydroxyprogesterone male 0.06[30] 3.0[30] mg/L
0.18[102] 9.1[102] μmol/L
Female (Follicular phase) 0.2[30] 1.0[30] mg/L
0.6[102] 3.0[102] μmol/L
Follicle-stimulating
hormone (FSH)
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-more detailed menstrual cycle
ranges in separate diagram
 Prepubertal <1[103] 3[103] IU/L
Adult male 1[103] 8[103]
Adult female (follicular
and luteal phase)		 1[103] 11[103]
Adult female (Ovulation) 6[103]
95% PI (standard)		 26[103]
95% PI)
5[104]
90% PI (used in diagram)		 15[104]
(90% PI)
Post-menopausal female 30[103] 118[103]
Luteinizing hormone (LH)
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-more detailed menstrual cycle
ranges in separate diagram
 Female, peak 20[104]
90% PI (used in diagram)		 75[104]
(90% PI)		 IU/L
Female, post-menopausal 15[105] 60[105]
Male aged 18+ 2[106] 9[106]
Estradiol
(an estrogen)
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-more detailed ranges in
estradiol article
 Adult male 50[107] 200[107] pmol/L
14[108] 55[108] pg/mL
Adult female (day 5 of follicular phase,
and luteal phase)		 70[107] 500,[107] 600[107] pmol/L
19[108] 140,[108] 160[108] pg/mL
Adult female – free (not protein bound) 0.5[109] 9[109] pg/mL
1.7[109] 33[109] pmol/L
Post-menopausal female 0[107] 130[107] pmol/L
0[108] 35[108] pg/mL
Progesterone
Page Module:Hatnote/styles.css has no content.
-more detailed ranges
in Progesterone article
 Female in mid-luteal phase (day 21–23) 17,[104] 35[110] 92[110] nmol/L
6,[104] 11[111] 29[111] ng/mL
Androstenedione Adult male and female 60[105] 270[105] ng/dL
Post-menopausal female < 180[105]
Prepubertal < 60[105]
Dehydroepiandrosterone sulfate Page Module:Hatnote/styles.css has no content.
-more detailed ranges
in DHEA-S article
 Adult male and female 30[112] 400[112] μg/dL
SHBG
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-more detailed ranges
in SHBG article
 Adult female 40[113] 120[113] nmol/L
Adult male 20[113] 60[113]
Anti-Müllerian hormone (AMH)
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-more detailed ranges in
AMH article
 13–45 years 0.7[114] 20[114] ng/mL
5[115] 140[115] pmol/L

Other hormones

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Test Patient type Lower limit Upper limit Unit
Adrenocorticotropic hormone (ACTH) 2.2[116] 13.3[116] pmol/L
20[22] 100[22] pg/mL
Cortisol 09:00 am 140[117] 700[117] nmol/L
5[118] 25[118] μg/dL
Midnight 80[117] 350[117] nmol/L
2.9[118] 13[118] μg/dL
Growth hormone (fasting) 0 5[21] ng/mL
Growth hormone (arginine stimulation) 7[21] n/a ng/mL
IGF-1
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-more detailed ranges in
IGF-1 article
 Female, 20 yrs 110[119] 420[119] ng/mL
Female, 75 yrs 55[119] 220[119]
Male, 20 yrs 160[119] 390[119]
Male, 75 yrs 48[119] 200[119]
Prolactin
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-more detailed ranges in
Prolactin article
 Female 71,[120] 105[120] 348,[120] 548[120] mIU/L
3.4,[120] 3.9[120] 16.4,[120] 20.3[120] μg/L
Male 58,[120] 89[120] 277,[120] 365[120] mIU/L
2.7,[120] 3.3[120] 13.0,[120] 13.5[120] μg/L
Parathyroid hormone (PTH) 10,[121] 17[122] 65,[121] 70[122] pg/mL
1.1,[10] 1.8[123] 6.9,[10] 7.5[123] pmol/L
25-hydroxycholecalciferol (a vitamin D)
– Standard reference range		 8,[30][124] 9[124] 40,[124] 80[30] ng/mL
20,[125] 23[126] 95,[126] 150[125] nmol/L
25-hydroxycholecalciferol
– Therapeutic target range		 30,[127] 40[128] 65,[128] 100[127] ng/mL
85,[70] 100[128] 120,[70] 160[128] nmol/L
Plasma renin activity 0.29,[129] 1.9[130] 3.7[129][130] ng/(mL·h)
3.3,[131] 21[132] 41[131][132] mcU/mL
Aldosterone
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-more detailed ranges in
Aldosterone article
 Adult 19,[131] 34.0[131] ng/dL
530,[133] 940[133] pmol/L
Aldosterone-to-renin ratio
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-more detailed ranges in
Aldosterone/renin ratio article
 Adult 13.1,[134] 35.0[134] ng/dL per ng/(mL·h)
360,[134] 970[134] pmol/liter per μg/(L·h)

Vitamins

Also including the vitamin B12)-related amino acid homocysteine.

Test Patient type Standard range Optimal range Unit
Lower limit Upper limit Lower limit Upper limit
Vitamin A 30[30] 65[30] μg/dL
Vitamin B9
(Folic acid/Folate) – Serum		 Age > 1 year 3.0[135] 16[135] 5[136] ng/mL or μg/L
6.8[137] 36[137] 11[137] nmol/L
Vitamin B9
(Folic acid/Folate) – Red blood cells		 200[135] 600[135] ng/mL or μg/L
450[137] 1400[137] nmol/L
Pregnant 400[135] ng/mL or μg/L
900[135] nmol/L
Vitamin B12 (Cobalamin) 130,[138] 160[139] 700,[138] 950[139] ng/L
100,[140] 120[10] 520,[140] 700[10] pmol/L
Homocysteine
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-more detailed ranges in
Homocysteine article
 3.3,[141] 5.9[141] 7.2,[141] 15.3[141] 6.3[70] μmol/L
45,[142] 80[142] 100,[142] 210[142] 85[70] μg/dL
Vitamin C (Ascorbic acid) 0.4[30] 1.5[30] 0.9[70] mg/dL
23[143] 85[143] 50[70] μmol/L
25-hydroxycholecalciferol (a vitamin D) 8,[30][124] 9[124] 40,[124] 80[30] 30,[127] 40[128] 65,[128] 100[127] ng/mL
20,[125] 23[126] 95,[126] 150[125] 85,[70] 100[128] 120,[70] 160[128] nmol/L
Vitamin E 28[70] μmol/L
1.2[70] mg/dL

Toxic Substances

Test Limit type Limit Unit
Lead Optimal health range < 20[25] or 40[30] μg/dL
Blood ethanol content Limit for drunk driving 0,[144] 0.2,[144] 0.8[144] ‰ or g/L
17.4[145] mmol/L

Hematology

Red blood cells

These values (except Hemoglobin in plasma) are for total blood and not only blood plasma.

Test Patient Lower limit Upper limit Unit Comments
Hemoglobin (Hb) Male 2.0,[146] 2.1[21][147] 2.5,[146] 2.7[21][147] mmol/L Higher in neonates, lower in children.
130,[10] 132,[22] 135[21] 162,[22] 170,[10] 175[21] g/L
Female 1.8,[146] 1.9[21][147] 2.3,[146] 2.5[21][146][147] mmol/L Sex difference negligible until adulthood.
120[10][21][22] 150,[10] 152,[22] 160[21][30] g/L
Hemoglobin subunits (sometimes displayed simply as "Hemoglobin") Male 8.0,[148] 8.4[148] 10.0,[148] 10.8[148] mmol/L 4 per hemoglobin molecule
Female 7.2,[148] 7.6[148] 9.2,[148] 10.0[148]
Hemoglobin in plasma 0.16[21] 0.62[21] μmol/L Normally diminutive compared with inside red blood cells
1 4 mg/dL
Glycated hemoglobin (HbA1c) < 50 years 3.6[10] 5.0[10] % of Hb
> 50 years 3.9[10] 5.3[10]
Haptoglobin < 50 years 0.35[10] 1.9[10] g/L
> 50 years 0.47[10] 2.1[10]
Hematocrit (Hct) Male 0.39,[10] 0.4,[22] 0.41,[21] 0.45[30] 0.50,[10] 0.52,[22] 0.53,[21] 0.62[30] L/L
Female 0.35,[10] 0.36,[21] 0.37[22][30] 0.46,[10][21][22] 0.48[30] L/L
Child 0.31[22] 0.43[22] L/L
Mean corpuscular volume (MCV) Male 76,[30] 82[22] 100,[30] 102[22] fL Cells are larger in neonates, though smaller in other children.
Female 78[22] 101[22] fL
Red blood cell distribution width (RDW) 11.5[22] 14.5[22] %
Mean cell hemoglobin (MCH) 0.39[21] 0.54[21] fmol/cell
25,[21] 27[10][30] 32,[30] 33,[10] 35[21] pg/cell
Mean corpuscular hemoglobin concentration (MCHC) 4.8,[149] 5.0[149] 5.4,[149] 5.6[149] mmol/L
31,[22] 32[10][30] 35,[22] 36[10][30] g/dL or %[note 1]
Erythrocytes/Red blood cells (RBC) Male 4.2,[30] 4.3[10][21][22] 5.7,[10] 5.9,[21] 6.2,[22] 6.9[30] ×1012/L
or
million/mm3
Female 3.5,[21] 3.8,[22] 3.9[10] 5.1,[10] 5.5[21][22]
Infant/Child 3.8[22] 5.5[22]
Reticulocytes Adult 26[10] 130[10] ×109/L
0.5[21][22] 1.5[21][22] % of RBC
Newborn 1.1[22] 4.5[22] % of RBC
Infant 0.5[22] 3.1[22] % of RBC
Immature reticulocyte fraction (IRF) Adult 1.6[150] 12.1[150] % of reticulocytes
Reticulocyte hemoglobin equivalent Adult 30.0[150] 37.6[150] %
24.1[151] 35.8[151] pg
Immature platelet fraction (IPF) Adult 0.8[150] 5.6[150] %

White blood cells

These values are for total blood and not only blood plasma.

Test Patient type Lower limit Upper limit Unit
White Blood Cell Count (WBC) Adult 3.5,[10] 3.9,[152] 4.1,[22] 4.5[21] 9.0,[10] 10.0,[152] 10.9,[22] 11[21]
  • ×109/L
  • ×103/mm3 or
  • ×103/μL
Newborn 9[153] 30[153]
1 year old 6[153] 18[153]
Neutrophil granulocytes
(A.K.A. grans, polys, PMNs, or segs)		 Adult 1.3,[10] 1.8,[152] 2[153] 5.4,[10] 7,[152] 8[153] ×109/L
45–54[21] 62,[21] 74 % of WBC
Newborn 6[153] 26[153] ×109/L
Neutrophilic band forms Adult 0.7[153] ×109/L
3[21] 5[21] % of WBC
Lymphocytes Adult 0.7,[10] 1.0[152][153] 3.5,[152] 3.9,[10] 4.8[153] ×109/L
16–25[21] 33,[21] 45 % of WBC
Newborn 2[153] 11[153] ×109/L
Monocytes Adult 0.1,[10] 0.2[154][155] 0.8[10][153][155] ×109/L
3,[21] 4.0 7,[21] 10 % of WBC
Newborn 0.4[153] 3.1[153] ×109/L
Mononuclear leukocytes
(Lymphocytes + monocytes)		 Adult 1.5 5 ×109/L
20 35 % of WBC
CD4+ T cells Adult 0.4,[22] 0.5[25] 1.5,[25] 1.8[22] ×109/L
Eosinophil granulocytes Adult 0.0,[10] 0.04[155] 0.44,[155] 0.45,[153] 0.5[10] ×109/L
1[21] 3,[21] 7 % of WBC
Newborn 0.02[153] 0.85[153] ×109/L
Basophil granulocytes Adult 40[152] 100,[10][155] 200,[153] 900[152] ×106/L
0.0 0.75,[21] 2 % of WBC
Newborn 0.64[153] ×109/L

Coagulation

Test Lower limit Upper limit Unit Comments
Thrombocyte/Platelet count (Plt) 140,[22] 150[10][21] 350,[10][30] 400,[21] 450[22] ×109/L or
x1000/μL
Mean platelet volume (MPV) 7.2,[156] 7.4,[157] 7.5[158] 10.4,[157] 11.5,[158] 11.7[156] fL
Prothrombin time (PT) 10,[25] 11,[21][159] 12[22] 13,[25] 13.5,[159] 14,[22] 15[21] s PT reference varies between laboratory kits – INR is standardised
INR 0.9[10] 1.2[10] The INR is a corrected ratio of a patient's PT to normal
Activated partial thromboplastin time (APTT) 18,[22] 30[10][25] 28,[22] 42,[10] 45[25] s
Thrombin clotting time (TCT) 11 18 s
Fibrinogen 1.7,[22] 2.0[10] 3.6,[10] 4.2[22] g/L
Antithrombin 0.80[10] 1.2[10] kIU/L
0.15,[160] 0.17[161] 0.2,[160] 0.39[161] mg/mL
Bleeding time 2 9 minutes
Viscosity 1.5[162] 1.72[162] cP

Immunology

Acute phase proteins

Acute phase proteins are markers of inflammation.

Test Patient Lower limit Upper limit Unit Comments
Erythrocyte sedimentation rate
(ESR)		 Male 0 Age÷2[163] mm/h ESR increases with age and tends to be higher in females.[164]
Female (Age+10)÷2[163]
C-reactive protein (CRP) 5,[10][165] 6[166] mg/L
200,[167] 240[167] nmol/L
Alpha 1-antitrypsin (AAT) 20,[168] 22[169] 38,[169] 53[168] μmol/L
89,[170] 97[10] 170,[10] 230[170] mg/dL
Procalcitonin 0.15[171] ng/mL or μg/L

Isotypes of antibodies

Script error: No such module "labelled list hatnote".

Test Patient Lower limit Upper limit Unit
IgA Adult 70,[10] 110[172] 360,[10] 560[172] mg/dL
IgD 0.5[172] 3.0[172]
IgE 0.01[172] 0.04[172]
IgG 800[172] 1800[172]
IgM 54[172] 220[172]

Autoantibodies

Script error: No such module "For". Autoantibodies are usually absent or very low, so instead of being given in standard reference ranges, the values usually denote where they are said to be present, or whether the test is a positive test. There may also be an equivocal interval, where it is uncertain whether there is a significantly increased level.

Test Negative Equivocal Positive Unit
anti-SS-A (Ro) < 1.0[173] n/a ≥ 1.0[173] Units (U)
anti-SS-B (La) < 1.0[174] n/a ≥ 1.0[174]
Anti ds-DNA < 30.0[175] 30.0–75.0[175] > 75.0[175] International Units per millilitre (IU/mL)
Anti ss-DNA < 8[176] 8–10[176] > 10[176] Units per millilitre (U/mL)
Anti-histone antibodies < 25[176] n/a[176] > 25[176]
Cytoplasmic anti-neutrophil
cytoplasmic antibodies (c-ANCA)		 < 20[176] 21–30[176] > 30[176]
Perinuclear anti-neutrophil
cytoplasmic antibodies (p-ANCA)		 < 5[176] n/a > 5[176]
Anti-mitochondrial antibodies (AMA) < 0.1[177] 0.1-0.9[177] ≥ 1.0[177] Units (U)
Rheumatoid factor (RF) < 20 20–30 > 30[22] Units per millilitre (U/mL)
Antistreptolysin O titre (ASOT) in
preschoolers		 > 100
ASOT at school age > 250[22]
ASOT in adults > 125[22]
Test Negative Low/weak positive Moderate positive High/strong positive Unit
Anti-phospholipid IgG < 20[176] 20–30[176] 31–50[176] > 51[176] GPLU/mL[176]
Anti-phospholipid IgM < 1.5[176] 1.5–2.5[176] 2–9.9[176] > 10[176] MPL /mL[176]
Anti-phospholipid IgA < 10[176] 10–20[176] 21–30[176] > 31[176] arb U/mL[176]
Anti-citrullinated protein antibodies < 20[176] 20–39[176] 40–59[176] > 60[176] EU[176]

Other immunology

Test Lower limit Upper limit Unit
Serum free light chains (FLC): kappa/lambda ratio 0.26[178] 1.65[178] (unitless)

Other enzymes and proteins

Test Lower limit Upper limit Unit Comments
Serum total protein 60,[21] 63[22] 78,[21] 82,[22] 84[30] g/L Script error: No such module "labelled list hatnote".
Lactate dehydrogenase (LDH) 50[30] 150[30] U/L
0.4[61] 1.7[61] μmol/L
1.8[10] 3.4[10] μkat/L < 70 years old[10]
Amylase 25,[21] 30,[22] 53[30] 110,[22] 120,[179] 123,[30] 125,[21] 190[61] U/L
0.15[10] 1.1[10] μkat/L
200[167] 240[167] nmol/L
D-dimer
Page Module:Hatnote/styles.css has no content.
-more detailed ranges in D-dimer article
 n/a 500[180] ng/mL Higher in pregnant women[181]
0.5[10] mg/L
Lipase 7,[22] 10,[30] 23[61] 60,[22] 150,[30] 208[61] U/L
Angiotensin-converting enzyme (ACE) 23[61] 57[61] U/L
Acid phosphatase 3.0[61] ng/mL
Eosinophil cationic protein (ECP) 2.3[10] 16[10] μg/L

Other electrolytes and metabolites

Electrolytes and metabolites: For iron and copper, some related proteins are also included.

Test Patient type Lower limit Upper limit Unit Comments
Osmolality 275,[21] 280,[30] 281[10] 295,[21] 296,[30] 297[10] mOsm/kg Plasma weight excludes solutes
Osmolarity Slightly less than osmolality mOsm/L Plasma volume includes solutes
Urea 3.0[182] 7.0[182] mmol/L BUN – blood urea nitrogen
7[21] 18,[21] 21[22] mg/dL
* Uric acid[22] 0.18[21] 0.48[21] mmol/L
Female 2.0[30] 7.0[30] mg/dL
Male 2.1[30] 8.5[30] mg/dL
Creatinine Male 60,[10] 68[183] 90,[10] 118[183] μmol/L May be complemented with creatinine clearance
0.7,[184] 0.8[184] 1.0,[184] 1.3[184] mg/dL
Female 50,[10] 68[183] 90,[10] 98[183] μmol/L
0.6,[184] 0.8[184] 1.0,[184] 1.1[184] mg/dL
BUN/Creatinine Ratio 5[30] 35[30] –
Plasma glucose (fasting) 3.8,[21] 4.0[10] 6.0,[10] 6.1[185] mmol/L See also glycated hemoglobin (in hematology)
65,[22] 70,[21] 72[186] 100,[185] 110[30] mg/dL
Full blood glucose (fasting) 3.3[10] 5.6[10] mmol/L
60[186] 100[186] mg/dL
Random glucose 3.9[187] 7.8[187] mmol/L
70[188] 140[188] mg/dL
Lactate (Venous) 4.5[30] 19.8[30] mg/dL
0.5[189] 2.2[189] mmol/L
Lactate (Arterial) 4.5[30] 14.4[30] mg/dL
0.5[189] 1.6[189] mmol/L
Pyruvate 300[30] 900[30] μg/dL
34[190] 102[190] μmol/L
Ketones 1[191] mg/dL
0.1[191] mmol/L

Medication

Test Lower limit Upper limit Unit Comments
Digoxin 0.5[192] 2.0[192] ng/mL Narrow therapeutic window
0.6[192] 2.6[192] nmol/L
Lithium 0.4,[193] 0.5,[194][195] 0.8[196] 1.3[194][195] mmol/L Narrow therapeutic window
Paracetamol 30[197] mg/L Risk of paracetamol toxicity at higher levels
200[197] μmol/L

See also

Notes

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  1. ^ The MCHC in g/dL and the mass fraction of hemoglobin in red blood cells in % are numerically identical in practice, assuming a RBC density of 1g/mL and negligible hemoglobin in plasma.

References

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  23. ^ a b c d Derived from molar values using molar mass of 22.99 g•mol−1
  24. ^ a b Derived from molar values using molar mass of 39.10 g•mol−1
  25. ^ a b c d e f g h i j k l m Merck Manuals > Common Medical Tests > Blood Tests Last full review/revision February 2003
  26. ^ a b Derived from molar values using molar mass of 35.45 g•mol−1
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  28. ^ a b c d Derived from molar values using molar mass of 40.08  g•mol−1
  29. ^ a b c Derived from mass values using molar mass of 40.08  g•mol−1
  30. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq br bs bt bu bv bw bx by bz Blood Test Results – Normal Ranges Script error: No such module "webarchive". Bloodbook.Com
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  32. ^ a b c d Diagnostic Chemicals Limited > Serum Iron-SL Assay Script error: No such module "webarchive". July 15, 2005
  33. ^ a b c d e f g h i j k l m Derived from mass values using molar mass of 55.85 g•mol−1
  34. ^ a b Table 1. Page 133" Clinical Chemistry 45, No. 1, 1999 (stating 1.9–3.3 g/L)
  35. ^ a b Derived by dividing mass values with molar mass
  36. ^ a b c d Ferritin by: Mark Levin, MD, Hematologist and Oncologist, Newark, NJ. Review provided by VeriMed Healthcare Network
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  38. ^ a b c d e Derived from mass values using molar mass of 450,000 g•mol−1
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  41. ^ a b c d Derived from molar values using molar mass of 17.03 g/mol
  42. ^ a b Derived from mass values using molar mass of 63.55 g•mol−1
  43. ^ Page Module:Citation/CS1/styles.css has no content."Reference range for copper". GPnotebook.
  44. ^ a b Derived from mass using molar mass of 151kDa
  45. ^ Page Module:Citation/CS1/styles.css has no content.Walter F. Boron (2005). Medical Physiology: A Cellular And Molecular Approach. Elsevier/Saunders. p. 849. ISBN 978-1-4160-2328-9.
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  47. ^ a b Derived from molar values using molar mass of 65.38 g/mol
  48. ^ a b Derived from mass values using molar mass of 65.38 g/mol
  49. ^ a b Derived from molar values using molar mass of 24.31 g/mol
  50. ^ a b Derived from mass values using molar mass of 24.31 g/mol
  51. ^ Page Module:Citation/CS1/styles.css has no content.Middleton P, Kelly AM, Brown J, Robertson M (August 2006). "Agreements between arterial and central venous values for pH, bicarbonate, base excess, and lactate". Emerg Med J. 23 (8): 622–24. doi:10.1136/emj.2006.035915. PMC 2564165. PMID 16858095.
  52. ^ a b c d e f g h i j k l The Medical Education Division of the Brookside Associates / ABG (Arterial Blood Gas) Retrieved on Dec 6, 2009
  53. ^ a b Derived from molar values using molar mass of 1.01 g•mol−1
  54. ^ a b c d e f g h Derived from mmHg values using 0.133322 kPa/mmHg
  55. ^ a b Derived from molar values using molar mass of 44.010 g/mol
  56. ^ a b c d Derived from molar values using molar mass of 61 g/mol
  57. ^ Page Module:Citation/CS1/styles.css has no content."Reference range (albumin)". GPnotebook.
  58. ^ a b Derived from mass using molecular weight of 65kD
  59. ^ a b c d e Derived from mass values using molar mass of 585g/mol
  60. ^ a b Derived from molar values using molar mass of 585g/mol
  61. ^ a b c d e f g h i j k l m n o p q r s Fachwörterbuch Kompakt Medizin E-D/D-E. Author: Fritz-Jürgen Nöhring. Edition 2. Publisher:Elsevier, Urban&FischerVerlag, 2004. Template:ISBN. Length: 1288 pages
  62. ^ a b c d GPnotebook > reference range (AST) Script error: No such module "webarchive". Retrieved on Dec 7, 2009
  63. ^ a b Page Module:Citation/CS1/styles.css has no content."Gamma-GT". Leistungsverzeichnis. Medizinisch-Diagnostische Institute. 5 November 2009. Archived from the original on 25 April 2012. Retrieved 20 November 2011.
  64. ^ a b Page Module:Citation/CS1/styles.css has no content."Creatine kinase". GPnotebook.
  65. ^ a b c d Page 585 in: Page Module:Citation/CS1/styles.css has no content.Lee, Mary Ann (2009). Basic Skills in Interpreting Laboratory Data. Amer Soc of Health System. ISBN 978-1-58528-180-0.
  66. ^ a b c d Muscle Information and Courses from MediaLab, Inc. > Cardiac Biomarkers Retrieved on April 22, 2010
  67. ^ Page Module:Citation/CS1/styles.css has no content.Caselli, C.; Cangemi, G.; Masotti, S.; Ragusa, R.; Gennai, I.; Del Ry, S.; Prontera, C.; Clerico, A. (2016-07-01). "Plasma cardiac troponin I concentrations in healthy neonates, children and adolescents measured with a high sensitive immunoassay method: High sensitive troponin I in pediatric age". Clinica Chimica Acta. 458: 68–71. doi:10.1016/j.cca.2016.04.029. ISSN 0009-8981. PMID 27118089.
  68. ^ Page Module:Citation/CS1/styles.css has no content.Baum, Hannsjörg; Hinze, Anika; Bartels, Peter; Neumeier, Dieter (2004-12-01). "Reference values for cardiac troponins T and I in healthy neonates". Clinical Biochemistry. 37 (12): 1079–82. doi:10.1016/j.clinbiochem.2004.08.003. ISSN 0009-9120. PMID 15589813.
  69. ^ a b Page 220 in: Page Module:Citation/CS1/styles.css has no content.Lee, Mary Ann (2009). Basic Skills in Interpreting Laboratory Data. Amer Soc of Health System. ISBN 978-1-58528-180-0.
  70. ^ a b c d e f g h i j k l m n Adëeva Nutritionals Canada > Optimal blood test values Script error: No such module "webarchive". Retrieved on July 9, 2009
  71. ^ a b c d e f Derived from values in mg/dL to mmol/L, by dividing by 89, according to faqs.org: What are mg/dL and mmol/L? How to convert? Glucose? Cholesterol? Last Update July 21, 2009. Retrieved on July 21, 2009
  72. ^ a b c d Derived from values in mg/dL to mmol/L, using molar mass of 386.65 g/mol
  73. ^ a b c Page Module:Citation/CS1/styles.css has no content."Reference range (cholesterol)". GPnotebook.
  74. ^ a b c d e f g h Royal College of Pathologists of Australasia; Cholesterol (HDL and LDL) – plasma or serum Last Updated: Monday, 6 August 2007
  75. ^ a b c d e f g h i j Derived from values in mmol/L, using molar mass of 386.65 g/mol
  76. ^ What Your Cholesterol Levels Mean. American Heart Association. Retrieved on September 12, 2009
  77. ^ Page Module:Citation/CS1/styles.css has no content."HDL Cholesterol: The Test". September 3, 2001. Archived from the original on 2001-09-03.
  78. ^ GP Notebook > range (reference, ca-125) Retrieved on Jan 5, 2009
  79. ^ ClinLab Navigator > Test Interpretations > CA-125 Script error: No such module "webarchive". Retrieved on March 8, 2011
  80. ^ a b Page Module:Citation/CS1/styles.css has no content.Bjerner J, Høgetveit A, Wold Akselberg K, et al. (June 2008). "Reference intervals for carcinoembryonic antigen (CEA), CA125, MUC1, Alfa-foeto-protein (AFP), neuron-specific enolase (NSE) and CA19.9 from the NORIP study". Scandinavian Journal of Clinical and Laboratory Investigation. 68 (8): 703–13. doi:10.1080/00365510802126836. PMID 18609108. S2CID 12545738.
  81. ^ Carcinoembryonic Antigen(CEA) at MedicineNet
  82. ^ a b c Page Module:Citation/CS1/styles.css has no content.Luboldt, Hans-Joachim; Schindler, Joachim F.; Rübben, Herbert (2007). "Age-Specific Reference Ranges for Prostate-Specific Antigen as a Marker for Prostate Cancer". EAU-EBU Update Series. 5 (1): 38–48. doi:10.1016/j.eeus.2006.10.003. ISSN 1871-2592.
  83. ^ a b c Page Module:Citation/CS1/styles.css has no content.Basuyau JP, Mallet E, Leroy M, Brunelle P (October 2004). "Reference intervals for serum calcitonin in men, women, and children". Clinical Chemistry. 50 (10): 1828–30. doi:10.1373/clinchem.2003.026963. PMID 15388660.
  84. ^ The TSH Reference Range Wars: What's "Normal?", Who is Wrong, Who is Right... Script error: No such module "webarchive". By Mary Shomon, About.com. Updated: June 19, 2006. About.com Health's Disease and Condition
  85. ^ a b 2006 Press releases: Thyroid Imbalance? Target Your Numbers Script error: No such module "webarchive". Contacts: Bryan Campbell American] Association of Clinical Endocrinologists
  86. ^ a b The TSH Reference Range Wars: What's "Normal?", Who is Wrong, Who is Right... Script error: No such module "webarchive". By Mary Shomon, About.com. Updated: June 19, 2006
  87. ^ a b Page Module:Citation/CS1/styles.css has no content.Demers, Laurence M.; Carole A. Spencer (2002). "LMPG: Laboratory Support for the Diagnosis and Monitoring of Thyroid Disease". National Academy of Clinical Biochemistry (USA). Archived from the original on 2008-11-20. Retrieved 2007-04-13. – see Section 2. Pre-analytic factors
  88. ^ a b c d e f Free T4; Thyroxine, Free; T4, Free Script error: No such module "webarchive". UNC Health Care System
  89. ^ Derived from molar values using molar mass of 776.87 g/mol
  90. ^ a b c d e f Derived from mass values using molar mass of 776.87 g/mol
  91. ^ a b c d e f g h i j k l m n o Table 4: Typical reference ranges for serum assays Script error: No such module "webarchive". – Thyroid Disease Manager
  92. ^ a b c d Page Module:Citation/CS1/styles.css has no content.van der Watt G, Haarburger D, Berman P (July 2008). "Euthyroid patient with elevated serum free thyroxine". Clinical Chemistry. 54 (7): 1239–41. doi:10.1373/clinchem.2007.101428. PMID 18593963.
  93. ^ a b c d Derived from mass values using molar mass of 650.98 g/mol
  94. ^ a b Page Module:Citation/CS1/styles.css has no content.Cioffi M, Gazzerro P, Vietri MT, et al. (2001). "Serum concentration of free T3, free T4 and TSH in healthy children". Journal of Pediatric Endocrinology & Metabolism. 14 (9): 1635–39. doi:10.1515/jpem.2001.14.9.1635. PMID 11795654. S2CID 34910563. INIST 13391788.
  95. ^ Page Module:Citation/CS1/styles.css has no content.Häggström, Mikael (2014). "Reference ranges for estradiol, progesterone, luteinizing hormone and follicle-stimulating hormone during the menstrual cycle". WikiJournal of Medicine. 1 (1). doi:10.15347/wjm/2014.001.
  96. ^ 10dLL290.447ngnmol30ngdL≈1.0nmolL
  97. ^ 10dLL290.447ngnmol85ngdL≈2.9nmolL
  98. ^ a b Page Module:Citation/CS1/styles.css has no content."Andrology Australia: Your Health > Low Testosterone > Diagnosis". Archived from the original on 2012-02-17. Retrieved 2008-11-28.
  99. ^ a b c d Derived from mass values using molar mass of 288.42g/mol
  100. ^ a b c d e f g Derived from molar values using molar mass of 288.42g/mol
  101. ^ a b c d MedlinePlus > Testosterone Update Date: 3/18/2008. Updated by: Elizabeth H. Holt, MD, PhD, Yale University. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director
  102. ^ a b c d Derived from mass values using molar mass of 330.46g/mol
  103. ^ a b c d e f g h i j reference range (FSH) GPnotebook. Retrieved on September 27, 2009
  104. ^ a b c d e f Values taken from day 1 after LH surge in: Page Module:Citation/CS1/styles.css has no content.Stricker R, Eberhart R, Chevailler MC, Quinn FA, Bischof P, Stricker R (2006). "Establishment of detailed reference values for luteinizing hormone, follicle stimulating hormone, estradiol, and progesterone during different phases of the menstrual cycle on the Abbott ARCHITECT analyzer". Clinical Chemistry and Laboratory Medicine. 44 (7): 883–87. doi:10.1515/CCLM.2006.160. PMID 16776638. S2CID 524952.
  105. ^ a b c d e f New York Hospital Queens > Services and Facilities > Patient Testing > Pathology > New York Hospital Queens Diagnostic Laboratories > Test Directory > Reference Ranges[permanent dead link] Retrieved on Nov 8, 2009
  106. ^ a b Mayo Medical Laboratories > Test ID: LH, Luteinizing Hormone (LH), Serum Script error: No such module "webarchive"., retrieved December 2012
  107. ^ a b c d e f g GPNotebook – reference range (oestradiol) Script error: No such module "webarchive". Retrieved on September 27, 2009
  108. ^ a b c d e f g Derived from molar values using molar mass of 272.38g/mol
  109. ^ a b c d Total amount multiplied by 0.022 according to 2.2% presented in: Page Module:Citation/CS1/styles.css has no content.Wu CH, Motohashi T, Abdel-Rahman HA, Flickinger GL, Mikhail G (August 1976). "Free and protein-bound plasma estradiol-17 beta during the menstrual cycle". J. Clin. Endocrinol. Metab. 43 (2): 436–45. doi:10.1210/jcem-43-2-436. PMID 950372.
  110. ^ a b Derived from mass values using molar mass of 314.46 g/mol
  111. ^ a b Bhattacharya Sudhindra Mohan (July/August 2005) Mid-luteal phase plasma progesterone levels in spontaneous and clomiphene citrate induced conception cycles Script error: No such module "webarchive". J Obstet Gynecol India Vol. 55, No. 4 : July/August 2005 pp. 350–52
  112. ^ a b Dehydroepiandrosterone Sulfate (DHEA-S), Serum Script error: No such module "webarchive". at Mayo Foundation For Medical Education And Research. Retrieved July 2012
  113. ^ a b c d Unit Code 91215 Script error: No such module "webarchive". at Mayo Clinic Medical Laboratories. Retrieved April 2011
  114. ^ a b Antimullerian Hormone (AMH), Serum Script error: No such module "webarchive". from Mayo Medical Laboratories. Retrieved April 2012.
  115. ^ a b Derived from mass values using 140,000 g/mol, as given in:
  116. ^ a b Page Module:Citation/CS1/styles.css has no content.Nieman, Lynnette K (29 September 2019). "Measurement of ACTH, CRH, and other hypothalamic and pituitary peptides". www.uptodate.com. UpToDate. Archived from the original on 25 June 2021. Retrieved 25 June 2021.
  117. ^ a b c d Biochemistry Reference Ranges at Good Hope Hospital Script error: No such module "webarchive". Retrieved on Nov 8, 2009
  118. ^ a b c d Derived from molar values using molar mass of 362 g/mol
  119. ^ a b c d e f g h Page Module:Citation/CS1/styles.css has no content.Friedrich N, Alte D, Völzke H, et al. (June 2008). "Reference ranges of serum IGF-1 and IGFBP-3 levels in a general adult population: results of the Study of Health in Pomerania (SHIP)". Growth Hormone & IGF Research. 18 (3): 228–37. doi:10.1016/j.ghir.2007.09.005. PMID 17997337.
  120. ^ a b c d e f g h i j k l m n o p Taken from the assay method giving the lowest and highest estimate, respectively, from Table 2 in: Page Module:Citation/CS1/styles.css has no content.Beltran L, Fahie-Wilson MN, McKenna TJ, Kavanagh L, Smith TP (October 2008). "Serum total prolactin and monomeric prolactin reference intervals determined by precipitation with polyethylene glycol: evaluation and validation on common immunoassay platforms". Clinical Chemistry. 54 (10): 1673–81. doi:10.1373/clinchem.2008.105312. PMID 18719199.
  121. ^ a b Derived from molar values using molar mass of 9.4 kDa
  122. ^ a b Table 2 in: Page Module:Citation/CS1/styles.css has no content.Aloia JF, Feuerman M, Yeh JK (2006). "Reference range for serum parathyroid hormone". Endocr Pract. 12 (2): 137–44. doi:10.4158/ep.12.2.137. PMC 1482827. PMID 16690460.
  123. ^ a b Derived from mass values using molar mass of 9.4 kDa
  124. ^ a b c d e f Derived from molar values using molar mass 400.6 g/mol
  125. ^ a b c d Page Module:Citation/CS1/styles.css has no content.Bender, David A. (2003). "Vitamin D". Nutritional biochemistry of the vitamins. Cambridge: Cambridge University Press. ISBN 978-0-521-80388-5. Retrieved December 10, 2008 through Google Book Search.
  126. ^ a b c d Page Module:Citation/CS1/styles.css has no content.Bischoff-Ferrari HA, Dietrich T, Orav EJ, et al. (September 2004). "Higher 25-hydroxyvitamin D concentrations are associated with better lower-extremity function in both active and inactive persons aged > or =60 y". The American Journal of Clinical Nutrition. 80 (3): 752–58. doi:10.1093/ajcn/80.3.752. PMID 15321818.
  127. ^ a b c d Page Module:Citation/CS1/styles.css has no content.Reusch J, Ackermann H, Badenhoop K (May 2009). "Cyclic changes of vitamin D and PTH are primarily regulated by solar radiation: 5-year analysis of a German (50 degrees N) population". Horm. Metab. Res. 41 (5): 402–07. doi:10.1055/s-0028-1128131. PMID 19241329. S2CID 260166796.
  128. ^ a b c d e f g h Page Module:Citation/CS1/styles.css has no content.Vasquez A, Cannell J (July 2005). "Calcium and vitamin D in preventing fractures: data are not sufficient to show inefficacy". BMJ. 331 (7508): 108–09, author reply 109. doi:10.1136/bmj.331.7508.108-b. PMC 558659. PMID 16002891.
  129. ^ a b Converted from values in mcU/mL by dividing with a factor of 11.2 mcU/mL per ng/(mL*hour), as given in: Washington, Department of Laboratory Medicine. Retrieved Mars 2011
  130. ^ a b Page Module:Citation/CS1/styles.css has no content.Pratt RE, Flynn JA, Hobart PM, Paul M, Dzau VJ (March 1988). "Different secretory pathways of renin from mouse cells transfected with the human renin gene". The Journal of Biological Chemistry. 263 (7): 3137–41. doi:10.1016/S0021-9258(18)69046-5. PMID 2893797.
  131. ^ a b c d New Assays for Aldosterone, Renin and Parathyroid Hormone Script error: No such module "webarchive". University of Washington, Department of Laboratory Medicine. Retrieved Mars 2011
  132. ^ a b Converted from values in ng/(mL*hour) by multiplying with a factor of 11.2 mcU/mL per ng/(mL*hour), as given in: Washington, Department of Laboratory Medicine. Retrieved Mars 2011
  133. ^ a b Converted from mass values using molar mass of 360.44 g/mol
  134. ^ a b c d Page Module:Citation/CS1/styles.css has no content.Tiu SC, Choi CH, Shek CC, et al. (January 2005). "The use of aldosterone-renin ratio as a diagnostic test for primary hyperaldosteronism and its test characteristics under different conditions of blood sampling". The Journal of Clinical Endocrinology and Metabolism. 90 (1): 72–78. CiteSeerX 10.1.1.117.5182. doi:10.1210/jc.2004-1149. PMID 15483077.
  135. ^ a b c d e f Central Manchester University Hospitals / Reference ranges Script error: No such module "webarchive". Retrieved on July 9, 2009
  136. ^ University of Kentucky Chandler Medical Center > Clinical Lab Reference Range Guide Retrieved on April 28, 2009
  137. ^ a b c d e Derived from mass values using molar mass of 441 mol−1
  138. ^ a b GPnotebook > B12 Retrieved on April 28, 2009
  139. ^ a b Derived form molar values using molar mass of 1355g/mol
  140. ^ a b Derived from mass values using molar mass of 1355g/mol
  141. ^ a b c d Page Module:Citation/CS1/styles.css has no content."Homocysteine". www.thedoctorsdoctor.com.
  142. ^ a b c d Derived from molar values using molar massof 135 g/mol
  143. ^ a b Derived from mass values using molar mass of 176 grams per mol
  144. ^ a b c For Driving under the influence by country, see Drunk driving law by country
  145. ^ Derived from mass values using molar mass of 46g/mol
  146. ^ a b c d e Derived from mass values using 64,500 g/mol. This molar mass was taken from: Page Module:Citation/CS1/styles.css has no content.Van Beekvelt MC, Colier WN, Wevers RA, Van Engelen BG (2001). "Performance of near-infrared spectroscopy in measuring local O2 consumption and blood flow in skeletal muscle". J Appl Physiol. 90 (2): 511–19. doi:10.1152/jappl.2001.90.2.511. PMID 11160049. S2CID 15468862.
  147. ^ a b c d Normal Lab Values Script error: No such module "webarchive". at Marshall University Joan C. Edwards School of Medicine. Retrieved July 2013
  148. ^ a b c d e f g h molar concentration as given for hemoglobin above, but multiplied by 4, according to: Page Module:Citation/CS1/styles.css has no content.Lodemann P, Schorer G, Frey BM (February 2010). "Wrong molar hemoglobin reference values-a longstanding error that should be corrected". Annals of Hematology. 89 (2): 209. doi:10.1007/s00277-009-0791-x. PMID 19609525. S2CID 3091357.
  149. ^ a b c d Derived from mass concentration, using molar mass of 64,458 g/mol. This molar mass was taken from: Page Module:Citation/CS1/styles.css has no content.Van Beekvelt MC, Colier WN, Wevers RA, Van Engelen BG (2001). "Performance of near-infrared spectroscopy in measuring local O2 consumption and blood flow in skeletal muscle". J Appl Physiol. 90 (2): 511–19. doi:10.1152/jappl.2001.90.2.511. PMID 11160049. S2CID 15468862.. Subsequently, 1 g/dL = 0.1551 mmol/L
  150. ^ a b c d e f Page Module:Citation/CS1/styles.css has no content.Morkis IV, Farias MG, Scotti L (2016). "Determination of reference ranges for immature platelet and reticulocyte fractions and reticulocyte hemoglobin equivalent". Rev Bras Hematol Hemoter. 38 (4): 310–313. doi:10.1016/j.bjhh.2016.07.001. PMC 5119661. PMID 27863758.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  151. ^ a b Page Module:Citation/CS1/styles.css has no content.Brugnara C, Schiller B, Moran J (2006). "Reticulocyte hemoglobin equivalent (Ret He) and assessment of iron-deficient states". Clinical and Laboratory Haematology. 28 (5): 303–8. doi:10.1111/j.1365-2257.2006.00812.x. PMC 1618805. PMID 16999719.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  152. ^ a b c d e f g h lymphomation.org > Tests & Imaging > Labs > Complete Blood Count Retrieved on May 14, 2009
  153. ^ a b c d e f g h i j k l m n o p q r s t u Page Module:Citation/CS1/styles.css has no content.McClatchey, Kenneth D. (November 28, 2002). Clinical Laboratory Medicine. Lippincott Williams & Wilkins. ISBN 978-0-683-30751-1 – via Google Books.
  154. ^ "Determination of monocyte count by hematological analyzers, manual method and flow cytometry in Polish population" Central European Journal of Immunology (Centr Eur J Immunol 2006; 31 (1–2): 1–5) authors: Elżbieta Górska, Urszula Demkow, Roman Pińkowski, Barbara Jakubczak, Dorota Matuszewicz, Jolanta Gawęda, Wioletta Rzeszotarska, Maria Wąsik,
  155. ^ a b c d e gpnotebook.co.uk > blood constituents (reference range) Retrieved on May 14, 2009
  156. ^ a b Page Module:Citation/CS1/styles.css has no content.Demirin H, Ozhan H, Ucgun T, Celer A, Bulur S, Cil H, Gunes C, Yildirim HA (2011). "Normal range of mean platelet volume in healthy subjects: Insight from a large epidemiologic study". Thromb. Res. 128 (4): 358–60. doi:10.1016/j.thromres.2011.05.007. hdl:20.500.12684/3830. PMID 21620440.
  157. ^ a b Normal Values: RBC, Hgb, Hct, Indices, RDW, Platelets, and MPV (Conventional Units) Script error: No such module "webarchive". From labcareplus. Retrieved 4 nov, 2010
  158. ^ a b Page Module:Citation/CS1/styles.css has no content.Lozano M, Narváez J, Faúndez A, Mazzara R, Cid J, Jou JM, Marín JL, Ordinas A (1998). "[Platelet count and mean platelet volume in the Spanish population]". Med Clin (Barc) (in español). 110 (20): 774–77. PMID 9666418.
  159. ^ a b MedlinePlus Encyclopedia: 003652
  160. ^ a b Antithrombin III at eMedicine
  161. ^ a b Antithrombin CO000300 Script error: No such module "webarchive". in Coagulation Test Handbook at Massachusetts General Hospital. In turn citing:
    • Elizabeth M. Van Cott, M.D., and Michael Laposata, M.D., Ph.D., "Coagulation." In: Jacobs DS et al, ed. The Laboratory Test Handbook, 5th Edition. Lexi-Comp, Cleveland, 2001; 327–58.
  162. ^ a b Page Module:Citation/CS1/styles.css has no content."Home". pathology.bsuh.nhs.uk. Retrieved November 20, 2009.
  163. ^ a b Page Module:Citation/CS1/styles.css has no content.Miller A, Green M, Robinson D (January 1983). "Simple rule for calculating normal erythrocyte sedimentation rate". British Medical Journal. 286 (6361): 266. doi:10.1136/bmj.286.6361.266. PMC 1546487. PMID 6402065.
  164. ^ Page Module:Citation/CS1/styles.css has no content.Böttiger LE, Svedberg CA (1967). "Normal erythrocyte sedimentation rate and age". Br Med J. 2 (5544): 85–87. doi:10.1136/bmj.2.5544.85. PMC 1841240. PMID 6020854.
  165. ^ Page Module:Citation/CS1/styles.css has no content."C-reactive protein". GPnotebook.
  166. ^ 2730 Serum C-Reactive Protein values in Diabetics with Periodontal Disease Script error: No such module "webarchive". A.R. Choudhury, and S. Rahman, Birdem, Diabetic Association of Bangladesh, Dhaka, Bangladesh. (the diabetics were not used to determine the reference ranges)
  167. ^ a b c d Derived from mass using molar mass of 25,106 g/mol
  168. ^ a b Page Module:Citation/CS1/styles.css has no content.Sipahi T, Kara C, Tavil B, Inci A, Oksal A (March 2003). "Alpha-1 antitrypsin deficiency: an overlooked cause of late hemorrhagic disease of the newborn". Journal of Pediatric Hematology/Oncology. 25 (3): 274–75. doi:10.1097/00043426-200303000-00019. PMID 12621252.
  169. ^ a b Derived from mass values using molar mass of 44324.5 g/mol
  170. ^ a b Derived from molar values using molar mass of 44324.5 g/mol
  171. ^ Page Module:Citation/CS1/styles.css has no content."Procalcitonin, Serum". Mayo Clinic. Retrieved 2015-03-01.
  172. ^ a b c d e f g h i j The Society for American Clinical Laboratory Science > Chemistry Tests > Immunoglobulins Script error: No such module "webarchive". Retrieved on Nov 26, 2009
  173. ^ a b Page Module:Citation/CS1/styles.css has no content."SSA – Clinical: SS-A/Ro Antibodies, IgG, Serum". www.mayocliniclabs.com. Mayo Clinic Laboratories. Retrieved 2 July 2020.
  174. ^ a b Page Module:Citation/CS1/styles.css has no content."SSB – Clinical: SS-B/La Antibodies, IgG, Serum". www.mayocliniclabs.com. Mayo Clinic Laboratories. Retrieved 2 July 2020.
  175. ^ a b c Page Module:Citation/CS1/styles.css has no content."ADNA – Clinical: DNA Double-Stranded Antibodies, IgG, Serum". www.mayocliniclabs.com. Mayo Clinic Laboratories. Retrieved 2 July 2020.
  176. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae chronolab.com > Autoantibodies associated with rheumatic diseases > Reference ranges Script error: No such module "webarchive". Retrieved on April 29, 2010
  177. ^ a b c Page Module:Citation/CS1/styles.css has no content."AMA – Clinical: Mitochondrial Antibodies (M2), Serum". www.mayocliniclabs.com. Mayo Clinic Laboratories. Retrieved 2 July 2020.
  178. ^ a b Page Module:Citation/CS1/styles.css has no content.Rajkumar SV, Kyle RA, Therneau TM, et al. (August 2005). "Serum free light chain ratio is an independent risk factor for progression in monoclonal gammopathy of undetermined significance". Blood. 106 (3): 812–17. doi:10.1182/blood-2005-03-1038. PMC 1895159. PMID 15855274.
  179. ^ Page Module:Citation/CS1/styles.css has no content."Reference range (amylase)". GPnotebook.
  180. ^ Page Module:Citation/CS1/styles.css has no content.Ageno W, Finazzi S, Steidl L, et al. (2002). "Plasma measurement of D-dimer levels for the early diagnosis of ischemic stroke subtypes". Archives of Internal Medicine. 162 (22): 2589–93. doi:10.1001/archinte.162.22.2589. hdl:2434/51239. PMID 12456231.
  181. ^ Page Module:Citation/CS1/styles.css has no content.Kline JA, Williams GW, Hernandez-Nino J (May 2005). "D-dimer concentrations in normal pregnancy: new diagnostic thresholds are needed". Clinical Chemistry. 51 (5): 825–29. doi:10.1373/clinchem.2004.044883. PMID 15764641.
  182. ^ a b Page Module:Citation/CS1/styles.css has no content.Gardner MD, Scott R (April 1980). "Age- and sex-related reference ranges for eight plasma constituents derived from randomly selected adults in a Scottish new town". Journal of Clinical Pathology. 33 (4): 380–85. doi:10.1136/jcp.33.4.380. PMC 1146084. PMID 7400337.
  183. ^ a b c d Page Module:Citation/CS1/styles.css has no content.Finney H, Newman DJ, Price CP (January 2000). "Adult reference ranges for serum cystatin C, creatinine and predicted creatinine clearance". Annals of Clinical Biochemistry. 37 (1): 49–59. doi:10.1258/0004563001901524. PMID 10672373. S2CID 35866310.
  184. ^ a b c d e f g h Derived from molar values by multiplying with the molar mass of 113.118 g/mol, and divided by 10.000 to adapt from μg/L to mg/dL
  185. ^ a b MedlinePlus Encyclopedia: Glucose tolerance test
  186. ^ a b c Derived from molar values using molar mass of 180g/mol
  187. ^ a b Derived from mass values using molar mass of 180g/mol
  188. ^ a b Page Module:Citation/CS1/styles.css has no content."Diabetes – Prevention". Cleveland Clinic. Retrieved 2016-06-23. Last revised 1/15/2013
  189. ^ a b c d Derived from mass values using molar mass of 90.08 g/mol
  190. ^ a b Derived from mass values using molar mass of 88.06 g/mol
  191. ^ a b Ketones at eMedicine
  192. ^ a b c d Page 700 in:
    Page Module:Citation/CS1/styles.css has no content.Richard C. Dart (2004). Medical Toxicology. Lippincott Williams & Wilkins=year=2004. ISBN 978-0-7817-2845-4.
  193. ^ The UK Electronic Medical Compendium recommends 0.4–0.8 mmol/L plasma lithium level in adults for prophylaxis of recurrent affective bipolar manic-depressive illness Camcolit 250 mg Lithium Carbonate Script error: No such module "webarchive". Revision 2 December 2010, Retrieved 5 May 2011
  194. ^ a b Page Module:Citation/CS1/styles.css has no content.Amdisen A. (1978). "Clinical and serum level monitoring in lithium therapy and lithium intoxication". J. Anal. Toxicol. 2 (5): 193–202. doi:10.1093/jat/2.5.193.
  195. ^ a b R. Baselt, Disposition of Toxic Drugs and Chemicals in Man, 8th edition, Biomedical Publications, Foster City, CA, 2008, pp. 851–54.
  196. ^ One study (Page Module:Citation/CS1/styles.css has no content.Solomon, D.; Ristow, W.; Keller, M.; Kane, J.; Gelenberg, A.; Rosenbaum, J.; Warshaw, M. (1996). "Serum lithium levels and psychosocial function in patients with bipolar I disorder". The American Journal of Psychiatry. 153 (10): 1301–07. doi:10.1176/ajp.153.10.1301. PMID 8831438.) concluded a "low" dose of 0.4–0.6 mmol/L serum lithium treatment for patients with bipolar 1 disorder had less side effects, but a higher rate of relapse, than a "standard" dose of 0.8–1.0 mmol/L. However, a reanalysis of the same experimental data (Page Module:Citation/CS1/styles.css has no content.Perlis, R.; Sachs, G.; Lafer, B.; Otto, M.; Faraone, S.; Kane, J.; Rosenbaum, J. (2002). "Effect of abrupt change from standard to low serum levels of lithium: A reanalysis of double-blind lithium maintenance data". The American Journal of Psychiatry. 159 (7): 1155–59. doi:10.1176/appi.ajp.159.7.1155. PMID 12091193. S2CID 12103424.) concluded the higher rate of relapse for the "low" dose was due to abrupt changes in the lithium serum levels[improper synthesis?]
  197. ^ a b Page Module:Citation/CS1/styles.css has no content.John Marx; Ron Walls; Robert Hockberger (2013). Rosen's Emergency Medicine – Concepts and Clinical Practice. Elsevier Health Sciences. ISBN 978-1-4557-4987-4.

Further reading

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