Reference ranges for blood tests

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Template:Short description Template:Reference ranges 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

Template:Further 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

Smaller, narrower boxes indicate a more tight homeostatic regulation when measured as standard "usual" reference range. Template:Blood Values

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).Template:Cn

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.

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

White blood cells

Sorted by category

Ions and trace metals

Template:Further Included here are also related binding proteins, like ferritin and transferrin for iron, and ceruloplasmin for copper.

Test Lower limit Upper limit Unit* Comments
Template:Anchor 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
Template:Anchor 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
Template:Anchor 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
Template:Anchor 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
Template:Anchor 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
Template:Anchor 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] %
Template:Anchor 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
Template:Anchor 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
Template:Anchor Copper (Cu) 70[30] 150[30] μg/dL See hypocupremia or hypercupremia
11[42][43] 24[42] μmol/L
Template:Anchor Ceruloplasmin 15[30] 60[30] mg/dL
1[44] 4[44] μmol/L
Template:Anchor 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
Template:Anchor 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
Template:Anchor 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

Template:Further Template:Further If arterial/venous is not specified for an acid–base or blood gas value, then it generally refers to arterial, and not venous which otherwise is standard for other blood tests.Template:Cn

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

Template:Further

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
Template:Anchor 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)
Template:Hatnote
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
Template:Hatnote
Interpretation Age Cutoff
Congestive heart failure likely < 75 years > 125 pg/mL[69]
> 75 years > 450pg/mL[69]

Lipids

Template:Further

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

Template:Further

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

Template:Further

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)
Template:Hatnote		 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

Template:Further The diagrams below take inter-cycle and inter-woman variability into account in displaying reference ranges for estradiol, progesterone, FSH and LH.

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)
Template:Hatnote		 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)
Template:Hatnote		 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)
Template:Hatnote		 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
Template:Hatnote		 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 Template:Hatnote Adult male and female 30[112] 400[112] μg/dL
SHBG
Template:Hatnote		 Adult female 40[113] 120[113] nmol/L
Adult male 20[113] 60[113]
Anti-Müllerian hormone (AMH)
Template:Hatnote		 13–45 years 0.7[114] 20[114] ng/mL
5[115] 140[115] pmol/L

Other hormones

Template:Further

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
Template:Hatnote		 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
Template:Hatnote		 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
Template:Hatnote		 Adult 19,[131] 34.0[131] ng/dL
530,[133] 940[133] pmol/L
Aldosterone-to-renin ratio
Template:Hatnote		 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
Template:Hatnote		 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]
Template:Anchor 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

Template:Further

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

Template: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 Template:Further
Template:Anchor 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
Template:Hatnote		 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] –
Template:Anchor 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
Template:Anchor 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

Template:Reflist

References

Template:Reflist

Further reading

Template:Blood tests Template:Authority control

  1. ↑ Template:Cite journal
  2. ↑ Template:Cite journal
  3. ↑ Template:Cite journal
  4. ↑ Template:Cite web
  5. ↑ Template:Cite book
  6. ↑ Template:Cite journal
  7. ↑ Template:Cite web
  8. ↑ Template:Cite journal
  9. ↑ Template:Cite book
  10. ↑ 10.000 10.001 10.002 10.003 10.004 10.005 10.006 10.007 10.008 10.009 10.010 10.011 10.012 10.013 10.014 10.015 10.016 10.017 10.018 10.019 10.020 10.021 10.022 10.023 10.024 10.025 10.026 10.027 10.028 10.029 10.030 10.031 10.032 10.033 10.034 10.035 10.036 10.037 10.038 10.039 10.040 10.041 10.042 10.043 10.044 10.045 10.046 10.047 10.048 10.049 10.050 10.051 10.052 10.053 10.054 10.055 10.056 10.057 10.058 10.059 10.060 10.061 10.062 10.063 10.064 10.065 10.066 10.067 10.068 10.069 10.070 10.071 10.072 10.073 10.074 10.075 10.076 10.077 10.078 10.079 10.080 10.081 10.082 10.083 10.084 10.085 10.086 10.087 10.088 10.089 10.090 10.091 10.092 10.093 10.094 10.095 10.096 10.097 10.098 10.099 10.100 10.101 10.102 10.103 10.104 10.105 10.106 10.107 10.108 10.109 10.110 10.111 10.112 10.113 10.114 10.115 10.116 10.117 10.118 10.119 10.120 10.121 10.122 10.123 10.124 10.125 10.126 Reference range list from Uppsala University Hospital ("Laborationslista"). Artnr 40284 Sj74a. Issued on April 22, 2008
  11. ↑ Template:Cite journal
  12. ↑ Template:Cite web
  13. ↑ 13.0 13.1 13.2 Template:Cite magazine
  14. ↑ 14.0 14.1 14.2 14.3 14.4 Template:Cite web Updated: Jan 14, 2015
  15. ↑ 15.0 15.1 15.2 15.3 Template:Cite journal
  16. ↑ 16.0 16.1 16.2 16.3 Template:Cite journal
  17. ↑ Template:Cite journal
  18. ↑ Template:Cite journal
  19. ↑ Template:Cite journal
  20. ↑ PROOPIOMELANOCORTIN; NCBI / POMC Retrieved on September 28, 2009
  21. ↑ 21.000 21.001 21.002 21.003 21.004 21.005 21.006 21.007 21.008 21.009 21.010 21.011 21.012 21.013 21.014 21.015 21.016 21.017 21.018 21.019 21.020 21.021 21.022 21.023 21.024 21.025 21.026 21.027 21.028 21.029 21.030 21.031 21.032 21.033 21.034 21.035 21.036 21.037 21.038 21.039 21.040 21.041 21.042 21.043 21.044 21.045 21.046 21.047 21.048 21.049 21.050 21.051 21.052 21.053 21.054 21.055 21.056 21.057 21.058 21.059 21.060 21.061 21.062 21.063 21.064 21.065 21.066 21.067 21.068 21.069 21.070 21.071 21.072 21.073 21.074 21.075 21.076 21.077 21.078 21.079 21.080 21.081 21.082 21.083 21.084 21.085 21.086 21.087 21.088 21.089 21.090 21.091 21.092 21.093 21.094 21.095 21.096 21.097 21.098 21.099 21.100 21.101 21.102 21.103 21.104 21.105 21.106 21.107 Last page of Template:Cite book
  22. ↑ 22.000 22.001 22.002 22.003 22.004 22.005 22.006 22.007 22.008 22.009 22.010 22.011 22.012 22.013 22.014 22.015 22.016 22.017 22.018 22.019 22.020 22.021 22.022 22.023 22.024 22.025 22.026 22.027 22.028 22.029 22.030 22.031 22.032 22.033 22.034 22.035 22.036 22.037 22.038 22.039 22.040 22.041 22.042 22.043 22.044 22.045 22.046 22.047 22.048 22.049 22.050 22.051 22.052 22.053 22.054 22.055 22.056 22.057 22.058 22.059 22.060 22.061 22.062 22.063 22.064 22.065 22.066 22.067 22.068 22.069 22.070 22.071 22.072 22.073 22.074 22.075 22.076 22.077 22.078 22.079 22.080 22.081 22.082 22.083 22.084 22.085 22.086 22.087 22.088 22.089 22.090 22.091 22.092 22.093 22.094 22.095 22.096 22.097 22.098 22.099 22.100 22.101 22.102 22.103 22.104 22.105 Normal Reference Range Table Template:Webarchive from The University of Texas Southwestern Medical Center at Dallas. Used in Interactive Case Study Companion to Pathologic basis of disease.
  23. ↑ 23.0 23.1 23.2 23.3 Derived from molar values using molar mass of 22.99 g•mol−1
  24. ↑ 24.0 24.1 Derived from molar values using molar mass of 39.10 g•mol−1
  25. ↑ 25.00 25.01 25.02 25.03 25.04 25.05 25.06 25.07 25.08 25.09 25.10 25.11 25.12 Merck Manuals > Common Medical Tests > Blood Tests Last full review/revision February 2003
  26. ↑ 26.0 26.1 Derived from molar values using molar mass of 35.45 g•mol−1
  27. ↑ 27.0 27.1 Template:Cite journal
  28. ↑ 28.0 28.1 28.2 28.3 Derived from molar values using molar mass of 40.08  g•mol−1
  29. ↑ 29.0 29.1 29.2 Derived from mass values using molar mass of 40.08  g•mol−1
  30. ↑ 30.00 30.01 30.02 30.03 30.04 30.05 30.06 30.07 30.08 30.09 30.10 30.11 30.12 30.13 30.14 30.15 30.16 30.17 30.18 30.19 30.20 30.21 30.22 30.23 30.24 30.25 30.26 30.27 30.28 30.29 30.30 30.31 30.32 30.33 30.34 30.35 30.36 30.37 30.38 30.39 30.40 30.41 30.42 30.43 30.44 30.45 30.46 30.47 30.48 30.49 30.50 30.51 30.52 30.53 30.54 30.55 30.56 30.57 30.58 30.59 30.60 30.61 30.62 30.63 30.64 30.65 30.66 30.67 30.68 30.69 30.70 30.71 30.72 30.73 30.74 30.75 30.76 30.77 Blood Test Results – Normal Ranges Template:Webarchive Bloodbook.Com
  31. ↑ 31.00 31.01 31.02 31.03 31.04 31.05 31.06 31.07 31.08 31.09 31.10 31.11 Template:Cite web
  32. ↑ 32.0 32.1 32.2 32.3 Diagnostic Chemicals Limited > Serum Iron-SL Assay Template:Webarchive July 15, 2005
  33. ↑ 33.00 33.01 33.02 33.03 33.04 33.05 33.06 33.07 33.08 33.09 33.10 33.11 33.12 Derived from mass values using molar mass of 55.85 g•mol−1
  34. ↑ 34.0 34.1 Table 1. Page 133" Clinical Chemistry 45, No. 1, 1999 (stating 1.9–3.3 g/L)
  35. ↑ 35.0 35.1 Derived by dividing mass values with molar mass
  36. ↑ 36.0 36.1 36.2 36.3 Ferritin by: Mark Levin, MD, Hematologist and Oncologist, Newark, NJ. Review provided by VeriMed Healthcare Network
  37. ↑ 37.0 37.1 Template:Cite web Updated: Jan 02, 2016
  38. ↑ 38.0 38.1 38.2 38.3 38.4 Derived from mass values using molar mass of 450,000 g•mol−1
  39. ↑ 39.0 39.1 Template:Cite journal
  40. ↑ 40.0 40.1 Template:Cite journal
  41. ↑ 41.0 41.1 41.2 41.3 Derived from molar values using molar mass of 17.03 g/mol
  42. ↑ 42.0 42.1 Derived from mass values using molar mass of 63.55 g•mol−1
  43. ↑ Template:Cite GPnotebook
  44. ↑ 44.0 44.1 Derived from mass using molar mass of 151kDa
  45. ↑ Template:Cite book
  46. ↑ 46.0 46.1 Template:Cite web
  47. ↑ 47.0 47.1 Derived from molar values using molar mass of 65.38 g/mol
  48. ↑ 48.0 48.1 Derived from mass values using molar mass of 65.38 g/mol
  49. ↑ 49.0 49.1 Derived from molar values using molar mass of 24.31 g/mol
  50. ↑ 50.0 50.1 Derived from mass values using molar mass of 24.31 g/mol
  51. ↑ Template:Cite journal
  52. ↑ 52.00 52.01 52.02 52.03 52.04 52.05 52.06 52.07 52.08 52.09 52.10 52.11 The Medical Education Division of the Brookside Associates / ABG (Arterial Blood Gas) Retrieved on Dec 6, 2009
  53. ↑ 53.0 53.1 Derived from molar values using molar mass of 1.01 g•mol−1
  54. ↑ 54.0 54.1 54.2 54.3 54.4 54.5 54.6 54.7 Derived from mmHg values using 0.133322 kPa/mmHg
  55. ↑ 55.0 55.1 Derived from molar values using molar mass of 44.010 g/mol
  56. ↑ 56.0 56.1 56.2 56.3 Derived from molar values using molar mass of 61 g/mol
  57. ↑ Template:Cite GPnotebook
  58. ↑ 58.0 58.1 Derived from mass using molecular weight of 65kD
  59. ↑ 59.0 59.1 59.2 59.3 59.4 Derived from mass values using molar mass of 585g/mol
  60. ↑ 60.0 60.1 Derived from molar values using molar mass of 585g/mol
  61. ↑ 61.00 61.01 61.02 61.03 61.04 61.05 61.06 61.07 61.08 61.09 61.10 61.11 61.12 61.13 61.14 61.15 61.16 61.17 61.18 Fachwörterbuch Kompakt Medizin E-D/D-E. Author: Fritz-Jürgen Nöhring. Edition 2. Publisher:Elsevier, Urban&FischerVerlag, 2004. Template:ISBN. Length: 1288 pages
  62. ↑ 62.0 62.1 62.2 62.3 GPnotebook > reference range (AST) Template:Webarchive Retrieved on Dec 7, 2009
  63. ↑ 63.0 63.1 Template:Cite web
  64. ↑ 64.0 64.1 Template:Cite GPnotebook
  65. ↑ 65.0 65.1 65.2 65.3 Page 585 in: Template:Cite book
  66. ↑ 66.0 66.1 66.2 66.3 Muscle Information and Courses from MediaLab, Inc. > Cardiac Biomarkers Retrieved on April 22, 2010
  67. ↑ Template:Cite journal
  68. ↑ Template:Cite journal
  69. ↑ 69.0 69.1 Page 220 in: Template:Cite book
  70. ↑ 70.00 70.01 70.02 70.03 70.04 70.05 70.06 70.07 70.08 70.09 70.10 70.11 70.12 70.13 Adëeva Nutritionals Canada > Optimal blood test values Template:Webarchive Retrieved on July 9, 2009
  71. ↑ 71.0 71.1 71.2 71.3 71.4 71.5 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. ↑ 72.0 72.1 72.2 72.3 Derived from values in mg/dL to mmol/L, using molar mass of 386.65 g/mol
  73. ↑ 73.0 73.1 73.2 Template:Cite GPnotebook
  74. ↑ 74.0 74.1 74.2 74.3 74.4 74.5 74.6 74.7 Royal College of Pathologists of Australasia; Cholesterol (HDL and LDL) – plasma or serum Last Updated: Monday, 6 August 2007
  75. ↑ 75.00 75.01 75.02 75.03 75.04 75.05 75.06 75.07 75.08 75.09 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. ↑ Template:Cite web
  78. ↑ GP Notebook > range (reference, ca-125) Retrieved on Jan 5, 2009
  79. ↑ ClinLab Navigator > Test Interpretations > CA-125 Template:Webarchive Retrieved on March 8, 2011
  80. ↑ 80.0 80.1 Template:Cite journal
  81. ↑ Carcinoembryonic Antigen(CEA) at MedicineNet
  82. ↑ 82.0 82.1 82.2 Template:Cite journal
  83. ↑ 83.0 83.1 83.2 Template:Cite journal
  84. ↑ The TSH Reference Range Wars: What's "Normal?", Who is Wrong, Who is Right... Template:Webarchive By Mary Shomon, About.com. Updated: June 19, 2006. About.com Health's Disease and Condition
  85. ↑ 85.0 85.1 2006 Press releases: Thyroid Imbalance? Target Your Numbers Template:Webarchive Contacts: Bryan Campbell American] Association of Clinical Endocrinologists
  86. ↑ 86.0 86.1 The TSH Reference Range Wars: What's "Normal?", Who is Wrong, Who is Right... Template:Webarchive By Mary Shomon, About.com. Updated: June 19, 2006
  87. ↑ 87.0 87.1 Template:Cite web – see Section 2. Pre-analytic factors
  88. ↑ 88.0 88.1 88.2 88.3 88.4 88.5 Free T4; Thyroxine, Free; T4, Free Template:Webarchive UNC Health Care System
  89. ↑ Derived from molar values using molar mass of 776.87 g/mol
  90. ↑ 90.0 90.1 90.2 90.3 90.4 90.5 Derived from mass values using molar mass of 776.87 g/mol
  91. ↑ 91.00 91.01 91.02 91.03 91.04 91.05 91.06 91.07 91.08 91.09 91.10 91.11 91.12 91.13 91.14 Table 4: Typical reference ranges for serum assays Template:Webarchive – Thyroid Disease Manager
  92. ↑ 92.0 92.1 92.2 92.3 Template:Cite journal
  93. ↑ 93.0 93.1 93.2 93.3 Derived from mass values using molar mass of 650.98 g/mol
  94. ↑ 94.0 94.1 Template:Cite journal
  95. ↑ Template:Cite journal
  96. ↑ 10dLL290.447ngnmol30ngdL≈1.0nmolL
  97. ↑ 10dLL290.447ngnmol85ngdL≈2.9nmolL
  98. ↑ 98.0 98.1 Template:Cite web
  99. ↑ 99.0 99.1 99.2 99.3 Derived from mass values using molar mass of 288.42g/mol
  100. ↑ 100.0 100.1 100.2 100.3 100.4 100.5 100.6 Derived from molar values using molar mass of 288.42g/mol
  101. ↑ 101.0 101.1 101.2 101.3 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. ↑ 102.0 102.1 102.2 102.3 Derived from mass values using molar mass of 330.46g/mol
  103. ↑ 103.00 103.01 103.02 103.03 103.04 103.05 103.06 103.07 103.08 103.09 reference range (FSH) GPnotebook. Retrieved on September 27, 2009
  104. ↑ 104.0 104.1 104.2 104.3 104.4 104.5 Values taken from day 1 after LH surge in: Template:Cite journal
  105. ↑ 105.0 105.1 105.2 105.3 105.4 105.5 New York Hospital Queens > Services and Facilities > Patient Testing > Pathology > New York Hospital Queens Diagnostic Laboratories > Test Directory > Reference RangesTemplate:Dead link Retrieved on Nov 8, 2009
  106. ↑ 106.0 106.1 Mayo Medical Laboratories > Test ID: LH, Luteinizing Hormone (LH), Serum Template:Webarchive, retrieved December 2012
  107. ↑ 107.0 107.1 107.2 107.3 107.4 107.5 107.6 GPNotebook – reference range (oestradiol) Template:Webarchive Retrieved on September 27, 2009
  108. ↑ 108.0 108.1 108.2 108.3 108.4 108.5 108.6 Derived from molar values using molar mass of 272.38g/mol
  109. ↑ 109.0 109.1 109.2 109.3 Total amount multiplied by 0.022 according to 2.2% presented in: Template:Cite journal
  110. ↑ 110.0 110.1 Derived from mass values using molar mass of 314.46 g/mol
  111. ↑ 111.0 111.1 Bhattacharya Sudhindra Mohan (July/August 2005) Mid-luteal phase plasma progesterone levels in spontaneous and clomiphene citrate induced conception cycles Template:Webarchive J Obstet Gynecol India Vol. 55, No. 4 : July/August 2005 pp. 350–52
  112. ↑ 112.0 112.1 Dehydroepiandrosterone Sulfate (DHEA-S), Serum Template:Webarchive at Mayo Foundation For Medical Education And Research. Retrieved July 2012
  113. ↑ 113.0 113.1 113.2 113.3 Unit Code 91215 Template:Webarchive at Mayo Clinic Medical Laboratories. Retrieved April 2011
  114. ↑ 114.0 114.1 Antimullerian Hormone (AMH), Serum Template:Webarchive from Mayo Medical Laboratories. Retrieved April 2012.
  115. ↑ 115.0 115.1 Derived from mass values using 140,000 g/mol, as given in:
  116. ↑ 116.0 116.1 Template:Cite web
  117. ↑ 117.0 117.1 117.2 117.3 Biochemistry Reference Ranges at Good Hope Hospital Template:Webarchive Retrieved on Nov 8, 2009
  118. ↑ 118.0 118.1 118.2 118.3 Derived from molar values using molar mass of 362 g/mol
  119. ↑ 119.0 119.1 119.2 119.3 119.4 119.5 119.6 119.7 Template:Cite journal
  120. ↑ 120.00 120.01 120.02 120.03 120.04 120.05 120.06 120.07 120.08 120.09 120.10 120.11 120.12 120.13 120.14 120.15 Taken from the assay method giving the lowest and highest estimate, respectively, from Table 2 in: Template:Cite journal
  121. ↑ 121.0 121.1 Derived from molar values using molar mass of 9.4 kDa
  122. ↑ 122.0 122.1 Table 2 in: Template:Cite journal
  123. ↑ 123.0 123.1 Derived from mass values using molar mass of 9.4 kDa
  124. ↑ 124.0 124.1 124.2 124.3 124.4 124.5 Derived from molar values using molar mass 400.6 g/mol
  125. ↑ 125.0 125.1 125.2 125.3 Template:Cite book Retrieved December 10, 2008 through Google Book Search.
  126. ↑ 126.0 126.1 126.2 126.3 Template:Cite journal
  127. ↑ 127.0 127.1 127.2 127.3 Template:Cite journal
  128. ↑ 128.0 128.1 128.2 128.3 128.4 128.5 128.6 128.7 Template:Cite journal
  129. ↑ 129.0 129.1 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. ↑ 130.0 130.1 Template:Cite journal
  131. ↑ 131.0 131.1 131.2 131.3 New Assays for Aldosterone, Renin and Parathyroid Hormone Template:Webarchive University of Washington, Department of Laboratory Medicine. Retrieved Mars 2011
  132. ↑ 132.0 132.1 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. ↑ 133.0 133.1 Converted from mass values using molar mass of 360.44 g/mol
  134. ↑ 134.0 134.1 134.2 134.3 Template:Cite journal
  135. ↑ 135.0 135.1 135.2 135.3 135.4 135.5 Central Manchester University Hospitals / Reference ranges Template:Webarchive Retrieved on July 9, 2009
  136. ↑ University of Kentucky Chandler Medical Center > Clinical Lab Reference Range Guide Retrieved on April 28, 2009
  137. ↑ 137.0 137.1 137.2 137.3 137.4 Derived from mass values using molar mass of 441 mol−1
  138. ↑ 138.0 138.1 GPnotebook > B12 Retrieved on April 28, 2009
  139. ↑ 139.0 139.1 Derived form molar values using molar mass of 1355g/mol
  140. ↑ 140.0 140.1 Derived from mass values using molar mass of 1355g/mol
  141. ↑ 141.0 141.1 141.2 141.3 Template:Cite web
  142. ↑ 142.0 142.1 142.2 142.3 Derived from molar values using molar massof 135 g/mol
  143. ↑ 143.0 143.1 Derived from mass values using molar mass of 176 grams per mol
  144. ↑ 144.0 144.1 144.2 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. ↑ 146.0 146.1 146.2 146.3 146.4 Derived from mass values using 64,500 g/mol. This molar mass was taken from: Template:Cite journal
  147. ↑ 147.0 147.1 147.2 147.3 Normal Lab Values Template:Webarchive at Marshall University Joan C. Edwards School of Medicine. Retrieved July 2013
  148. ↑ 148.0 148.1 148.2 148.3 148.4 148.5 148.6 148.7 molar concentration as given for hemoglobin above, but multiplied by 4, according to: Template:Cite journal
  149. ↑ 149.0 149.1 149.2 149.3 Derived from mass concentration, using molar mass of 64,458 g/mol. This molar mass was taken from: Template:Cite journal. Subsequently, 1 g/dL = 0.1551 mmol/L
  150. ↑ 150.0 150.1 150.2 150.3 150.4 150.5 Template:Cite journal
  151. ↑ 151.0 151.1 Template:Cite journal
  152. ↑ 152.0 152.1 152.2 152.3 152.4 152.5 152.6 152.7 lymphomation.org > Tests & Imaging > Labs > Complete Blood Count Retrieved on May 14, 2009
  153. ↑ 153.00 153.01 153.02 153.03 153.04 153.05 153.06 153.07 153.08 153.09 153.10 153.11 153.12 153.13 153.14 153.15 153.16 153.17 153.18 153.19 153.20 Template:Cite book
  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. ↑ 155.0 155.1 155.2 155.3 155.4 gpnotebook.co.uk > blood constituents (reference range) Retrieved on May 14, 2009
  156. ↑ 156.0 156.1 Template:Cite journal
  157. ↑ 157.0 157.1 Normal Values: RBC, Hgb, Hct, Indices, RDW, Platelets, and MPV (Conventional Units) Template:Webarchive From labcareplus. Retrieved 4 nov, 2010
  158. ↑ 158.0 158.1 Template:Cite journal
  159. ↑ 159.0 159.1 Template:MedlinePlusEncyclopedia
  160. ↑ 160.0 160.1 Template:EMedicine
  161. ↑ 161.0 161.1 Antithrombin CO000300 Template: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. ↑ 162.0 162.1 Template:Cite web
  163. ↑ 163.0 163.1 Template:Cite journal
  164. ↑ Template:Cite journal
  165. ↑ Template:Cite GPnotebook
  166. ↑ 2730 Serum C-Reactive Protein values in Diabetics with Periodontal Disease Template: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. ↑ 167.0 167.1 167.2 167.3 Derived from mass using molar mass of 25,106 g/mol
  168. ↑ 168.0 168.1 Template:Cite journal
  169. ↑ 169.0 169.1 Derived from mass values using molar mass of 44324.5 g/mol
  170. ↑ 170.0 170.1 Derived from molar values using molar mass of 44324.5 g/mol
  171. ↑ Template:Cite web
  172. ↑ 172.00 172.01 172.02 172.03 172.04 172.05 172.06 172.07 172.08 172.09 The Society for American Clinical Laboratory Science > Chemistry Tests > Immunoglobulins Template:Webarchive Retrieved on Nov 26, 2009
  173. ↑ 173.0 173.1 Template:Cite web
  174. ↑ 174.0 174.1 Template:Cite web
  175. ↑ 175.0 175.1 175.2 Template:Cite web
  176. ↑ 176.00 176.01 176.02 176.03 176.04 176.05 176.06 176.07 176.08 176.09 176.10 176.11 176.12 176.13 176.14 176.15 176.16 176.17 176.18 176.19 176.20 176.21 176.22 176.23 176.24 176.25 176.26 176.27 176.28 176.29 176.30 chronolab.com > Autoantibodies associated with rheumatic diseases > Reference ranges Template:Webarchive Retrieved on April 29, 2010
  177. ↑ 177.0 177.1 177.2 Template:Cite web
  178. ↑ 178.0 178.1 Template:Cite journal
  179. ↑ Template:Cite GPnotebook
  180. ↑ Template:Cite journal
  181. ↑ Template:Cite journal
  182. ↑ 182.0 182.1 Template:Cite journal
  183. ↑ 183.0 183.1 183.2 183.3 Template:Cite journal
  184. ↑ 184.0 184.1 184.2 184.3 184.4 184.5 184.6 184.7 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. ↑ 185.0 185.1 Template:MedlinePlusEncyclopedia
  186. ↑ 186.0 186.1 186.2 Derived from molar values using molar mass of 180g/mol
  187. ↑ 187.0 187.1 Derived from mass values using molar mass of 180g/mol
  188. ↑ 188.0 188.1 Template:Cite web Last revised 1/15/2013
  189. ↑ 189.0 189.1 189.2 189.3 Derived from mass values using molar mass of 90.08 g/mol
  190. ↑ 190.0 190.1 Derived from mass values using molar mass of 88.06 g/mol
  191. ↑ 191.0 191.1 Template:EMedicine
  192. ↑ 192.0 192.1 192.2 192.3 Page 700 in:
    Template:Cite book
  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 Template:Webarchive Revision 2 December 2010, Retrieved 5 May 2011
  194. ↑ 194.0 194.1 Template:Cite journal
  195. ↑ 195.0 195.1 R. Baselt, Disposition of Toxic Drugs and Chemicals in Man, 8th edition, Biomedical Publications, Foster City, CA, 2008, pp. 851–54.
  196. ↑ One study (Template:Cite journal) 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 (Template:Cite journal) concluded the higher rate of relapse for the "low" dose was due to abrupt changes in the lithium serum levelsTemplate:Synthesis inline
  197. ↑ 197.0 197.1 Template:Cite book


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