Reference ranges for blood tests

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Lua error in package.lua at line 80: module 'strict' not found. Reference ranges 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.

Blood test results should always be interpreted using the reference range provided by the laboratory that performed the test.[1]

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).[2] It is determined by collecting data from vast numbers of laboratory tests.

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:

  • 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.

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).[5] Arterial levels for drugs are generally higher than venous levels because of extraction while passing through tissues.[5]

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 specific conditions, which here are myocardial infarction and congestive heart failure, respectively, for the aforementioned substances.

Variability

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Further information: Reference range

References range may vary with age, sex, race, pregnancy,[6] 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.[7] Also, reference ranges may be inaccurate when the reference groups used to establish the ranges are small.

Sorted by concentration

By mass and molarity

A separate printable image is available for mass and molarity

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

Reference ranges for blood tests, sorted logarithmically by mass above the scale and by molarity below.

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).

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

  • Numerically: molar concentration x molar mass = mass concentration
  • Measured directly in distance on the scales:

\log_{10} \frac{\textit{molar~mass}}{1000} = \textit{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,[8] 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 don't necessarily imply anything about molarity or mass.

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

Reference ranges for blood tests - by enzyme activity.png

White blood cells

Reference ranges for blood tests - white blood cells.png

Sorted by category

Ions and trace metals

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Further information: Trace metal

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

Test Lower limit Upper limit Unit Comments
Sodium (Na) 135,[9] 137[4][10] 145,[4][10] 147[9] mmol/L or mEq/L[9] See hyponatremia or hypernatremia
310,[11] 320[11] 330,[11] 340[11] mg/dl
Potassium (K) 3.5,[4][9] 3.6[10] 5.0,[4][9][10] 5.1 mmol/L or mEq/L[9] See hypokalemia or hyperkalemia
14[12] 20[12] mg/dl
Chloride (Cl) 95,[9] 98,[13] 100[4] 105,[9] 106,[13] 110[4] mmol/L or mEq/L[9] See hypochloremia or hyperchloremia
340[14] 370[14] mg/dl
Ionized calcium (Ca) 1.03,[15] 1.10[4] 1.23,[15] 1.30[4] mmol/L See hypocalcaemia or hypercalcaemia
4.1,[16] 4.4[16] 4.9,[16] 5.2[16] mg/dL
Total calcium (Ca) 2.1,[9][17] 2.2[4] 2.5,[4][17] 2.6,[17] 2.8[9] mmol/L
8.4,[9] 8.5[18] 10.2,[9] 10.5[18] mg/dL
Total serum iron (TSI) - male 65,[19] 76[10] 176,[19] 198[10] µg/dL See hypoferremia or the following: iron overload (hemochromatosis), iron poisoning, siderosis, hemosiderosis, hyperferremia
11.6,[20][21] 13.6[21] 30,[20] 32,[21] 35[21] μmol/L
Total serum iron (TSI) - female 26,[10] 50[19] 170[10][19] µg/dL
4.6,[21] 8.9[20] 30.4[20] μmol/L
Total serum iron (TSI) - newborns 100[19] 250[19] µg/dL
18[21] 45[21] µmol/L
Total serum iron (TSI) - children 50[19] 120[19] µg/dL
9[21] 21[21] µmol/L
Total iron-binding capacity (TIBC) 240,[19] 262[10] 450,[19] 474[10] μg/dL
43,[21] 47[21] 81,[21] 85[21] µmol/L
Transferrin 190,[22] 194,[4] 204[10] 326,[4] 330,[22] 360[10] mg/dL
25[23] 45[23] μmol/L
Transferrin saturation 20[19] 50[19]  %
Ferritin - Males and postmenopausal females 12[24] 300[24][25] ng/mL or µg/L
27[26] 670[26] pmol/L
Ferritin - premenopausal females 12[24] 150[24] - 200[25] ng/mL or µg/L
27[26] 330[26] - 440[26] pmol/L
Ammonia 10,[27] 20[28] 35,[27] 65[28] μmol/L See hypoammonemia and hyperammonemia
17,[29] 34[29] 60,[29] 110[29] μg/dL
Copper (Cu) 70[18] 150[18] µg/dL See hypocupremia or hypercupremia
11[30][31] 24[30] μmol/L
Ceruloplasmin 15[18] 60[18] mg/dL
1[32] 4[32] μmol/L
Phosphate (HPO42−) 0.8 1.5[33] mmol/L See hypophosphatemia or hyperphosphatemia
Inorganic phosphorus (serum) 1.0[9] 1.5[9] mmol/L
3.0[9] 4.5[9] mg/dL
Zinc (Zn) 60,[34] 72[35] 110,[35] 130[34] μg/dL See zinc deficiency or zinc poisoning
9.2,[36] 11[4] 17,[4] 20[36] µmol/L
Magnesium 1.5,[18] 1.7[37] 2.0,[18] 2.3[37] mEq/L or mg/dL See hypomagnesemia or hypermagnesemia
0.6,[38] 0.7[4] 0.82,[38] 0.95[4] mmol/L

Acid-base and blood gases

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Further information: Acid-base homeostasis

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Further information: Arterial blood gas

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.

Acid-base and blood gases are among the few blood constituents that exhibit substantial difference between arterial and venous values.[5] 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.[39]

Test Arterial/Venous Lower limit Upper limit Unit
pH Arterial 7.34,[10] 7.35[9] 7.44,[10] 7.45[9]
Venous 7.31[40] 7.41[40]
[H+] Arterial 36[9] 44[9] nmol/L
3.6[41] 4.4[41] ng/dL
Base excess Arterial & venous[40] -3[40] +3[40] mEq/L
oxygen partial pressure (pO2) Arterial pO2 10,[9] 11[42] 13,[42] 14[9] kPa
75,[9][10] 83[18] 100,[10] 105[9] mmHg or torr
Venous 4.0[42] 5.3[42] kPa
30[40] 40[40] mmHg or torr
Oxygen saturation Arterial 94,[40] 95,[13] 96[18] 100[13][18]  %
Venous Approximately 75[13]
Carbon dioxide partial pressure (PCO2) Arterial PaCO2 4.4,[9] 4.7[42] 5.9,[9] 6.0[42] kPa
33,[9] 35[10] 44,[9] 45[10] mmHg or torr
Venous 5.5,[42] 6.8[42] kPa
41[40] 51[40] mmHg or torr
Absolute content of carbon dioxide (CO2) Arterial 23[40] 30[40] mmol/L
100[43] 132[43] mg/dL
Bicarbonate (HCO3−) Arterial & venous 18[18] 23[18] mmol/L
110[44] 140[44] mg/dL
Standard bicarbonate (SBCe) Arterial & venous 21, 22[9] 27, 28[9] mmol/L or mEq/L[9]
134[44] 170[44] mg/dL

Liver function

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Further information: Liver function tests
Test Patient type Lower limit Upper limit Unit Comments
Total protein 60,[9] 63[10] 78,[9] 82,[10] 84[18] g/L <templatestyles src="Module:Hatnote/styles.css"></templatestyles>
Further information: Serum total protein § Interpretation
Albumin 35[9][45] 48,[10] 55[9] g/L see hypoalbuminemia
3.5[10] 4.8,[10] 5.5[9] U/L
540[46] 740[46] μmol/L
Globulins 23[9] 35[9] g/L
Total bilirubin 1.7,[47] 2,[9] 3.4,[47] 5[4] 17,[9][47] 22,[47] 25[4] μmol/L
0.1,[9] 0.2,[10] 0.29[48] 1.0,[9][18] 1.3,[10] 1.4[48] mg/dL
Direct/conjugated bilirubin 0.0[9] or N/A[4] 5,[9] 7[4][47] μmol/L
0[9][10] 0.3,[9][10] 0.4[18] mg/dL
Alanine transaminase (ALT/ALAT[4]) 5,[49] 7,[10] 8[9] 20,[9] 21,[13] 56[10] U/L Also called serum glutamic pyruvic transaminase (SGPT)
Female 0.15[4] 0.75[4] µkat/L
Male 0.15[4] 1.1[4]
Aspartate transaminase (AST/ASAT[4]) Female 6[50] 34[50] IU/L Also called
serum glutamic oxaloacetic transaminase (SGOT)
0.25[4] 0.60[4] µkat/L
Male 8[50] 40[50] IU/L
0.25[4] 0.75[4] µkat/L
Alkaline phosphatase (ALP) Female 42[49] 98[49] U/L
Male 53[49] 128[49]
(Enzyme activity) 0.6[4] 1.8[4] µkat/L
Gamma glutamyl transferase (GGT) 5,[49] 8[10] 40,[49] 78[10] U/L
Women 0.63[51] µkat/L
Men 0.92[51] µkat/L

Cardiac tests

Test Patient type Lower limit Upper limit Unit
Creatine kinase (CK) male 24,[52] 38,[10] 60[49] 174,[18] 320[49] U/L
or ng/mL
0.42[53] 1.5[53] µkat/L
female 24,[52] 38,[10] 96[18] 140,[18] 200[49] U/L
or ng/mL
0.17[53] 1.17[53] µkat/L
CK-MB 0 3,[10] 3.8,[4] 5[49] ng/mL or μg/L[4]
Myoglobin Female 1[54] 66[54] ng/mL or µg/L
Male 17[54] 106[54]
Brain natriuretic peptide (BNP)
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-more detailed ranges in BNP article
Interpretation Range / Cutoff
Congestive heart failure unlikely < 100 pg/mL[55][56]
"Gray zone" 100-500 pg/mL[55][56]
Congestive heart failure likely >500 pg/mL[55][56]
NT-proBNP
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-more detailed ranges in NT-proBNP article
Interpretation Age Cutoff
Congestive heart failure likely < 75years > 125 pg/mL[57]
>75 years >450pg/mL[57]

Lipids

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Further information: Blood lipids
Test Patient type Lower limit Upper limit Unit Therapeutic target
Triglycerides 10 – 39 years 54[18] 110[18] mg/dL < 100 mg/dL[58]
or 1.1[58] mmol/L
0.61[59] 1.2[59] mmol/L
40 – 59 years 70[18] 150[18] mg/dL
0.77[59] 1.7[59] mmol/L
> 60 years 80[18] 150[18] mg/dL
0.9[59] 1.7[59] mmol/L
Total cholesterol 3.0,[60] 3.6[9][60] 5.0,[4][61] 6.5[9] mmol/L < 3.9[58]
120,[10] 140[9] 200,[10] 250[9] mg/dL < 150[58]
HDL cholesterol female 1.0,[62] 1.2,[4] 1.3[60] 2.2[62] mmol/L > 1.0[62] or 1.6[60]  mmol/L
> 40[63] or 60[64] mg/dL
40,[63] 50[65] 86[63] mg/dL
HDL cholesterol male 0.9[4][62] 2.0[62] mmol/L
35[63] 80[63] mg/dL
LDL cholesterol
(Not valid when
triglycerides >5.0 mmol/L)		 2.0,[62] 2.4[61] 3.0,[4][61] 3.4[62] mmol/L < 2.5[62]
80,[63] 94[63] 120,[63] 130[63] mg/dL < 100[63]
LDL/HDL quotient n/a 5[4] (unitless)

Tumour markers

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Further information: Tumour markers
Test Cutoff Unit Comments
Alpha fetoprotein (AFP) 44[10] ng/mL or µg/L Hepatocellular carcinoma or testicular cancer
Beta Human chorionic gonadotrophin (bHCG) 5[10] IU/l or mU/ml in male and non-pregnant female
CA19-9 40[10] U/ml Pancreatic cancer
CA-125 30,[66] 35[67] kU/L or U/mL
Carcinoembryonic antigen (CEA)
non-smokers at 50 years		 3.4,[4] 3.6[68] μg/l
Carcinoembryonic antigen (CEA)
non-smokers at 70 years		 4.1[68] μg/l
Carcinoembryonic antigen (CEA) - smokers 5[69] μg/l
Prostate specific antigen (PSA) 2.5,[4] 4[10] μg/L[4][10] or ng/mL[18] below age 45 <2.5 μg/L
PAP 3[18] units/dL (Bodansky units)
Calcitonin
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-more detailed cutoffs in Calcitonin article
 5,[70] 15[70] ng/L or pg/mL Cutoff against medullary thyroid cancer[70]

Endocrinology

Thyroid hormones

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Further information: Thyroid function tests
Test Patient type Lower limit Upper limit Unit
Thyroid stimulating hormone
(TSH or thyrotropin)		 Adults -
standard range		 0.3,[4] 0.4,[10] 0.5,[18] 0.6[71] 4.0,[4] 4.5,[10] 6.0[18] mIU/L or μIU/mL
Adults -
optimal range		 0.3,[72] 0.5[73] 2.0,[73] 3.0[72] mIU/L or μIU/mL
Infants 1.3[74] 19[74] mIU/L or μIU/mL
Free thyroxine (FT4)
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-more detailed ranges in
Thyroid function tests article
 Normal adult 0.7,[75] 0.8[10] 1.4,[75] 1.5,[10] 1.8[76] ng/dL
9,[4][77] 10,[78] 12[79] 18,[4][77] 23[79] pmol/L
Child/Adolescent
31 d - 18 y		 0.8[75] 2.0[75] ng/dL
10[77] 26[77] pmol/L
Pregnant 0.5[75] 1.0[75] ng/dL
6.5[77] 13[77] pmol/L
Total thyroxine 4,[78] 5.5[10] 11,[78] 12.3[10] μg/dL
60[78][79] 140,[78] 160[79] nmol/L
Free triiodothyronine (FT3) Normal adult 0.2[78] 0.5[78] ng/dL
3.1[80] 7.7[80] pmol/L
Children 2-16 y 0.1[81] 0.6[81] ng/dL
1.5[80] 9.2[80] pmol/L
Total triiodothyronine 60,[10] 75[78] 175,[78] 181[10] ng/dL
0.9,[4] 1.1[78] 2.5,[4] 2.7[78] nmol/L
Thyroxine-binding globulin (TBG) 12[10] 30[10] mg/L
Thyroglobulin (Tg) 1.5[78] 30[78] pmol/L
1[78] 20[78] μg/L

Sex hormones

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Further information: Sex steroid

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.[82]
Test Patient type Lower limit Upper limit Unit
Dihydrotestosterone adult male 30[83] 85[83] ng/dL
Testosterone Male, overall 8,[84] 10[85] 27,[84] 35[85] nmol/L
230,[86] 300[87] 780[86] - 1000[87] ng/dL
Male < 50 years 10[4] 45[4] nmol/L
290[86] 1300[86] ng/dL
Male > 50 years 6.2[4] 26[4] nmol/L
180[86] 740[86] ng/dL
Female 0.7[85] 2.8[85] - 3.0[4] nmol/L
20[87] 80[87] - 85[86] ng/dL
17α-Hydroxyprogesterone male 0.06[18] 3.0[18] mg/L
0.18[88] 9.1[88] µmol/l
Female (Follicular phase) 0.2[18] 1.0[18] mg/L
0.6[88] 3.0[88] µmol/l
Follicle-stimulating
hormone (FSH)
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-more detailed menstrual cycle
ranges in separate diagram
 Prepubertal <1[89] 3[89] IU/L
Adult male 1[89] 8[89]
Adult female (follicular
and luteal phase)		 1[89] 11[89]
Adult female (Ovulation) 6[89]
95% PI (standard)		 26[89]
95% PI)
5[90]
90% PI (used in diagram)		 15[90]
(90% PI)
Post-menopausal female 30[89] 118[89]
Luteinizing hormone (LH)
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-more detailed menstrual cycle
ranges in separate diagram
 Female, peak 20[90]
90% PI (used in diagram)		 75[90]
(90% PI)		 IU/L
Female, post-menopausal 15[91] 60[91]
Male aged 18+ 2[92] 9[92]
Estradiol
(an estrogen)
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-more detailed ranges in
estradiol article
 Adult male 50[93] 200[93] pmol/L
14[94] 55[94] pg/mL
Adult female (day 5 of follicular phase,
and luteal phase)		 70[93] 500,[93] 600[93] pmol/L
19[94] 140,[94] 160[94] pg/mL
Adult female - free (not protein bound) 0.5[95] 9[95] pg/mL
1.7[95] 33[95] pmol/L
Post-menopausal female N/A[93] < 130[93] pmol/L
N/A[94] < 35[94] pg/mL
Progesterone
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-more detailed ranges
in Progesterone article
 Female in mid-luteal phase (day 21-23) 17,[90] 35[96] 92[96] nmol/L
6,[90] 11[97] 29[97] ng/mL
Androstenedione Adult male and female 60[91] 270[91] ng/dL
Post-menopausal female < 180[91]
Prepubertal < 60[91]
Dehydroepiandrosterone sulfate <templatestyles src="Module:Hatnote/styles.css"></templatestyles>
-more detailed ranges
in DHEA-S article
 Adult male and female 30[98] 400[98] µg/dL
SHBG
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-more detailed ranges
in SHBG article
 Adult female 40[99] 120[99] nmol/L
Adult male 20[99] 60[99]
Anti-Müllerian hormone (AMH)
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-more detailed ranges in
AMH article
 13–45 years 0.7[100] 20[100] ng/mL
5[101] 140[101] pmol/l

Other hormones

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Further information: Hormones
Test Patient type Lower limit Upper limit Unit
Adrenocorticotropic hormone (ACTH) 4.4[102] 18,[103] 22[102] pmol/L
20[10] 80,[104] 100[10] pg/mL
Cortisol 09:00 am 140[105] 700[105] nmol/L
5[106] 25[106] μg/dL
Midnight 80[105] 350[105] nmol/L
2.9[106] 13[106] μg/dL
Growth hormone (fasting) 0 5[9] ng/mL
Growth hormone (arginine stimulation) 7[9] n/a ng/mL
IGF-1
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-more detailed ranges in
IGF-1 article
 Female, 20 yrs 110[107] 420[107] ng/mL
Female, 75 yrs 55[107] 220[107]
Male, 20 yrs 160[107] 390[107]
Male, 75 yrs 48[107] 200[107]
Prolactin
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-more detailed ranges in
Prolactin article
 Female 71,[108] 105[108] 348,[108] 548[108] mIU/L
3.4,[108] 3.9[108] 16.4,[108] 20.3[108] µg/L
Male 58,[108] 89[108] 277,[108] 365[108] mIU/L
2.7,[108] 3.3[108] 13.0,[108] 13.5[108] µg/L
Parathyroid hormone (PTH) 10,[109] 17[110] 65,[109] 70[110] pg/mL
1.1,[4] 1.8[111] 6.9,[4] 7.5[111] pmol/L
25-hydroxycholecalciferol (a vitamin D)
-Standard reference range		 8,[18][112] 9[112] 40,[112] 80[18] ng/mL
20,[113] 23[114] 95,[114] 150[113] nmol/L
25-hydroxycholecalciferol
-Therapeutic target range		 30,[115] 40[116] 65,[116] 100[115] ng/mL
85,[58] 100[116] 120,[58] 160[116] nmol/L
Plasma renin activity 0.29,[117] 1.9[118] 3.7[117][118] ng/(mL*hour)
3.3,[119] 21[120] 41[119][120] mcU/mL
Aldosterone
<templatestyles src="Module:Hatnote/styles.css"></templatestyles>
-more detailed ranges in
Aldosterone article
 Adult 19,[119] 34.0[119] ng/dL
530,[121] 940[121] pmol/L
Aldosterone-to-renin ratio
<templatestyles src="Module:Hatnote/styles.css"></templatestyles>
-more detailed ranges in
Aldosterone/renin ratio article
 Adult 13.1,[122] 35.0[122] ng/dl per ng/(mL·h)
360,[122] 970[122] pmol/liter per µg/(L·h)

Vitamins

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

Test Patient type Standard range Unit Optimal range
Lower limit Upper limit Lower limit Upper limit
Vitamin A 30[18] 65[18] µg/dL
Vitamin B9
(Folic acid/Folate) - Serum		 Age > 1year 3.0[123] 16[123] ng/mL or μg/L 5[124]
6.8[125] 36[125] nmol/l 11[125]
Vitamin B9
(Folic acid/Folate) - Red blood cells		 200[123] 600[123] ng/mL or μg/L
450[125] 1400[125] nmol/L
Pregnant ng/mL or μg/L 400[123]
nmol/L 900[123]
Vitamin B12 (Cobalamin) 130,[126] 160[127] 700,[126] 950[127] ng/L
100,[128] 120[4] 520,[128] 700[4] pmol/L
Homocysteine
<templatestyles src="Module:Hatnote/styles.css"></templatestyles>
-more detailed ranges in
Homocysteine article
 3.3,[129] 5.9[129] 7.2,[129] 15.3[129] μmol/L 6.3[58]
45,[130] 80[130] 100,[130] 210[130] μg/dL 85[58]
Vitamin C (Ascorbic acid) 0.4[18] 1.5[18] mg/dL 0.9[58]
23[131] 85[131] μmol/L 50[58]
25-hydroxycholecalciferol (a vitamin D) 8,[18][112] 9[112] 40,[112] 80[18] ng/mL 30,[115] 40[116] 65,[116] 100[115]
20,[113] 23[114] 95,[114] 150[113] nmol/L 85,[58] 100[116] 120,[58] 160[116]
Vitamin E μmol/L 28[58]
mg/dL 1.2[58]

Toxins

Test Limit type Limit Unit
Lead Optimal health range < 20[13] or 40[18] µg/dL
Blood ethanol content Limit for drunk driving 0,[132] 0.2,[132] 0.8[132] ‰ or g/L
17.4[133] 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,[134] 2.1[9][135] 2.5,[134] 2.7[9][135] mmol/L Higher in neonates, lower in children.
130,[4] 132,[10] 135[9] 162,[10] 170,[4] 175[9] g/L
female 1.8,[134] 1.9[9][135] 2.3,[134] 2.5[9][134][135] mmol/L Sex difference negligible until adulthood.
120[4][9][10] 150,[4] 152,[10] 160[9][18] g/L
Hemoglobin subunits (sometimes displayed simply as "Hemoglobin") male 8.0,[136] 8.4[136] 10.0,[136] 10.8[136] mmol/L 4 per hemoglobin molecule
female 7.2,[136] 7.6[136] 9.2,[136] 10.0[136]
Hemoglobin in plasma 0.16[9] 0.62[9] μmol/L Normally diminutive compared with inside red blood cells
1 4 mg/dL
Glycated hemoglobin (HbA1c) < 50 years 3.6[4] 5.0[4]  % of Hb
> 50 years 3.9[4] 5.3[4]
Haptoglobin < 50 years 0.35[4] 1.9[4] g/L
> 50 years 0.47[4] 2.1[4]
Hematocrit (Hct) male 0.39,[4] 0.4,[10] 0.41,[9] 0.45[18] 0.50,[4] 0.52,[10] 0.53,[9] 0.62[18]
female 0.35,[4] 0.36,[9] 0.37[10][18] 0.46,[4][9][10] 0.48[18]
Child 0.31[10] 0.43[10]
Mean cell volume (MCV) Male 76,[18] 82[10] 100,[18] 102[10] fL Cells are larger in neonates, though smaller in other children.
Female 78[10] 101[10] fL
Red blood cell distribution width (RDW) 11.5[10] 14.5[10]  %
Mean cell hemoglobin (MCH) 0.39[9] 0.54[9] fmol/cell
25,[9] 27[4][18] 32,[18] 33,[4] 35[9] pg/cell
Mean corpuscular hemoglobin concentration (MCHC) 31,[10] 32[4][18] 35,[10] 36[4][18] g/dL or %[note 1]
4.8,[137] 5.0[137] 5.4,[137] 5.6[137] mmol/L
Erythrocytes/Red blood cells (RBC) male 4.2,[18] 4.3[4][9][10] 5.7,[4] 5.9,[9] 6.2,[10] 6.9[18] x1012/L
or
mln/mm3
Female 3.5,[9] 3.8,[10] 3.9[4] 5.1,[4] 5.5[9][10]
Infant/Child 3.8[10] 5.5[10]
Reticulocytes Adult 26[4] 130[4] x109/L
Adult 0.5[9][10] 1.5[9][10]  % of RBC
Newborn 1.1[10] 4.5[10]  % of RBC
Infant 0.5[10] 3.1[10]  % of RBC

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,[4] 3.9,[138] 4.1,[10] 4.5[9] 9.0,[4] 10.0,[138] 10.9,[10] 11[9]
  • x109/L
  • x103/mm3 or
  • x103/μL
Newborn 9[139] 30[139]
1 year old 6[139] 18[139]
Neutrophil granulocytes
(A.K.A. grans, polys, PMNs, or segs)		 Adult 1.3,[4] 1.8,[138] 2[139] 5.4,[4] 7,[138] 8[139] x109/L
45-54[9] 62,[9] 74  % of WBC
Newborn 6[139] 26[139] x109/L
Neutrophilic band forms Adult 0.7[139] x109/L
3[9] 5[9]  % of WBC
Lymphocytes Adult 0.7,[4] 1.0[138][139] 3.5,[138] 3.9,[4] 4.8[139] x109/L
16-25[9] 33,[9] 45  % of WBC
Newborn 2[139] 11[139] x109/L
Monocytes Adult 0.1,[4] 0.2[140][141] 0.8[4][139][141] x109/L
3,[9] 4.0 7,[9] 10  % of WBC
Newborn 0.4[139] 3.1[139] x109/L
Mononuclear leukocytes
(Lymphocytes + monocytes)		 Adult 1.5 5 x109/L
20 35  % of WBC
CD4+ T cells Adult 0.4,[10] 0.5[13] 1.5,[13] 1.8[10] x109/L
Eosinophil granulocytes Adult 0.0,[4] 0.04[141] 0.44,[141] 0.45,[139] 0.5[4] x109/L
1[9] 3,[9] 7  % of WBC
Newborn 0.02[139] 0.85[139] x109/L
Basophil granulocytes Adult 40[138] 100,[4][141] 200,[139] 900[138] x106/L
0.0 0.75,[9] 2  % of WBC
Newborn 0.64[139] x109/L

Coagulation

Test Lower limit Upper limit Unit Comments
Thrombocyte/Platelet count (Plt) 140,[10] 150[4][9] 350,[4][18] 400,[9] 450[10] x109/L or
x1000/µL
Mean platelet volume (MPV) 7.2,[142] 7.4,[143] 7.5[144] 10.4,[143] 11.5,[144] 11.7[142] fL
Prothrombin time (PT) 10,[13] 11,[9][145] 12[10] 13,[13] 13.5,[145] 14,[10] 15[9] s PT reference varies between laboratory kits - INR is standardised
INR 0.9[4] 1.2[4] The INR is a corrected ratio of a patient's PT to normal
Activated partial thromboplastin time (APTT) 18,[10] 30[4][13] 28,[10] 42,[4] 45[13] s
Thrombin clotting time (TCT) 11 18 s
Fibrinogen 1.7,[10] 2.0[4] 3.6,[4] 4.2[10] g/L
Antithrombin 0.80[4] 1.2[4] kIU/L
0.15,[146] 0.17[147] 0.2,[146] 0.39[147] mg/mL
Bleeding time 2 9 minutes
Viscosity 1.5[148] 1.72[148] 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[149] mm/h ESR increases with age and tends to be higher in females.[150]
Female (Age+10)÷2[149]
C-reactive protein (CRP) 5,[4][151] 6[152] mg/L
200,[153] 240[153] nmol/L
Alpha 1-antitrypsin (AAT) 20,[154] 22[155] 38,[155] 53[154] μmol/L
89,[156] 97[4] 170,[4] 230[156] mg/dL
Procalcitonin 0.15[157] ng/mL or μg/L

Isotypes of antibodies

<templatestyles src="Module:Hatnote/styles.css"></templatestyles>

Further information: Antibody
Test Patient Lower limit Upper limit Unit
IgA Adult 70,[4] 110[158] 360,[4] 560[158] mg/dL
IgD 0.5[158] 3.0[158]
IgE 0.01[158] 0.04[158]
IgG 800[158] 1800[158]
IgM 54[158] 220[158]

Autoantibodies

<templatestyles src="Module:Hatnote/styles.css"></templatestyles>

For clinical associations, see Autoantibody.

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. All included values[159] are given for the ELISA test.

Test Negative Equivocal Positive Unit
anti-SS-A (Ro) < 15[160] 15-25[160] > 25[160] Units
per
millilitre
(U/mL)
anti-SS-B (La) < 3[160] 3 – 4[160] > 4[160]
Anti ds-DNA < 40[160] 40 – 60[160] > 60[160]
Anti ss-DNA < 8[160] 8 - 10[160] > 10[160]
Anti-histone antibodies < 25[160] n/a[160] > 25[160]
Cytoplasmic/classical
anti-neutrophil cytoplasmic
antibodies (c-ANCA)		 < 20[160] 21 - 30[160] > 30[160]
Perinuclear
anti-neutrophil cytoplasmic
antibodies (p-ANCA)		 < 5[160] n/a > 5[160]
Anti-mitochondrial antibodies (AMA) < 10[160] n/a[160] > 10[160]
Rheumatoid factor (RF) < 20 20 - 30 > 30[10]
Antistreptolysin O titre
(ASOT) in
preschoolers		 > 100
ASOT at school age > 250[10]
ASOT in adults > 125[10]
Test Negative Low/weak positive Moderate positive High/strong positive Unit
Anti-phospholipid IgG < 20[160] 20 –30[160] 31 – 50[160] > 51[160] GPLU/ml[160]
Anti-phospholipid IgM < 1.5[160] 1.5 –2.5[160] 2 – 9.9[160] > 10[160] MPL /ml[160]
Anti-phospholipid IgA < 10[160] 10 -20[160] 21 – 30[160] > 31[160] arb U/ml[160]
Anti-citrullinated protein antibodies < 20[160] 20 – 39[160] 40 - 59[160] > 60[160] EU[160]

Other immunology

Test Lower limit Upper limit Unit
Serum free light chains (FLC): kappa/lambda ratio 0.26[161] 1.65[161] (unit-less)

Other enzymes and proteins

Test Lower limit Upper limit Unit Comments
Serum total protein 60,[9] 63[10] 78,[9] 82,[10] 84[18] g/L <templatestyles src="Module:Hatnote/styles.css"></templatestyles>
Further information: Serum total protein § Interpretation
Lactate dehydrogenase (LDH) 50[18] 150[18] U/L
0.4[49] 1.7[49] μmol/L
1.8[4] 3.4[4] µkat/L < 70 years old[4]
Amylase 25,[9] 30,[10] 53[18] 110,[10] 120,[162] 123,[18] 125,[9] 190[49] U/L
0.15[4] 1.1[4] µkat/L
200[153] 240[153] nmol/L
D-dimer
<templatestyles src="Module:Hatnote/styles.css"></templatestyles>
-more detailed ranges in D-dimer article
 n/a 500[163] ng/mL Higher in pregnant women[164]
0.5[4] mg/L
Lipase 7,[10] 10,[18] 23[49] 60,[10] 150,[18] 208[49] U/L
Angiotensin-converting enzyme (ACE) 23[49] 57[49] U/L
Acid phosphatase 3.0[49] ng/mL
Eosinophil cationic protein (ECP) 2.3[4] 16[4] 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,[9] 280,[18] 281[4] 295,[9] 296,[18] 297[4] mOsm/kg Plasma weight excludes solutes
Osmolarity Slightly less than osmolality mOsm/l Plasma volume includes solutes
Urea 3.0[165] 7.0[165] mmol/L BUN - blood urea nitrogen
7[9] 18,[9] 21[10] mg/dL
* Uric acid[10] 0.18[9] 0.48[9] mmol/L
Female 2.0[18] 7.0[18] mg/dL
Male 2.1[18] 8.5[18] mg/dL
Creatinine male 60,[4] 68[166] 90,[4] 118[166] μmol/L May be complemented with creatinine clearance
0.7,[167] 0.8[167] 1.0,[167] 1.3[167] mg/dL
female 50,[4] 68[166] 90,[4] 98[166] μmol/L
0.6,[167] 0.8[167] 1.0,[167] 1.1[167] mg/dL
BUN/Creatinine Ratio 5[18] 35[18] -
Plasma glucose (fasting) 3.8,[9] 4.0[4] 6.0,[4] 6.1[168] mmol/L See also glycated hemoglobin (in hematology)
65,[10] 70,[9] 72[169] 100,[168] 110[18] mg/dL
Full blood glucose (fasting) 3.3[4] 5.6[4] mmol/L
60[169] 100[169] mg/dL
Random glucose 3.9[170] 7.8[170] mmol/L
70[171] 140[171] mg/dL
Lactate (Venous) 4.5[18] 19.8[18] mg/dL
0.5[172] 2.2[172] mmol/L
Lactate (Arterial) 4.5[18] 14.4[18] mg/dL
0.5[172] 1.6[172] mmol/L
Pyruvate 300[18] 900[18] μg/dL
34[173] 102[173] μmol/L
Ketones 1[174] mg/dL
0.1[174] mmol/L

Medication

Test Lower limit Upper limit Unit Comments
Digoxin 0.5[175] 2.0[175] ng/ml Narrow therapeutic window
0.6[175] 2.6[175] nmol/l
Lithium 0.4,[176] 0.5,[177][178] 0.8[179] 1.3[177][178] mmol/l Narrow therapeutic window
Paracetamol 30[180] mg/L Risk of paracetamol toxicity at higher levels
200[180] µmol/L

See also

Notes

  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

  1. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ Page 19 in: Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ Page 34: Units of measurement in Medical toxicology By Richard C. Dart Edition: 3, illustrated Published by Lippincott Williams & Wilkins, 2004 ISBN 0-7817-2845-2, ISBN 978-0-7817-2845-4 1914 pages
  4. ↑ 4.000 4.001 4.002 4.003 4.004 4.005 4.006 4.007 4.008 4.009 4.010 4.011 4.012 4.013 4.014 4.015 4.016 4.017 4.018 4.019 4.020 4.021 4.022 4.023 4.024 4.025 4.026 4.027 4.028 4.029 4.030 4.031 4.032 4.033 4.034 4.035 4.036 4.037 4.038 4.039 4.040 4.041 4.042 4.043 4.044 4.045 4.046 4.047 4.048 4.049 4.050 4.051 4.052 4.053 4.054 4.055 4.056 4.057 4.058 4.059 4.060 4.061 4.062 4.063 4.064 4.065 4.066 4.067 4.068 4.069 4.070 4.071 4.072 4.073 4.074 4.075 4.076 4.077 4.078 4.079 4.080 4.081 4.082 4.083 4.084 4.085 4.086 4.087 4.088 4.089 4.090 4.091 4.092 4.093 4.094 4.095 4.096 4.097 4.098 4.099 4.100 4.101 4.102 4.103 4.104 4.105 4.106 4.107 4.108 4.109 4.110 4.111 4.112 4.113 4.114 4.115 4.116 4.117 4.118 4.119 4.120 4.121 4.122 4.123 4.124 4.125 4.126 4.127 Reference range list from Uppsala University Hospital ("Laborationslista"). Artnr 40284 Sj74a. Issued on April 22, 2008
  5. ↑ 5.0 5.1 5.2 Arterial versus venous reference ranges - Brief Article Medical Laboratory Observer, April, 2000 by D. Robert Dufour
  6. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  7. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  8. ↑ PROOPIOMELANOCORTIN; NCBI --> POMC Retrieved on September 28, 2009
  9. ↑ 9.000 9.001 9.002 9.003 9.004 9.005 9.006 9.007 9.008 9.009 9.010 9.011 9.012 9.013 9.014 9.015 9.016 9.017 9.018 9.019 9.020 9.021 9.022 9.023 9.024 9.025 9.026 9.027 9.028 9.029 9.030 9.031 9.032 9.033 9.034 9.035 9.036 9.037 9.038 9.039 9.040 9.041 9.042 9.043 9.044 9.045 9.046 9.047 9.048 9.049 9.050 9.051 9.052 9.053 9.054 9.055 9.056 9.057 9.058 9.059 9.060 9.061 9.062 9.063 9.064 9.065 9.066 9.067 9.068 9.069 9.070 9.071 9.072 9.073 9.074 9.075 9.076 9.077 9.078 9.079 9.080 9.081 9.082 9.083 9.084 9.085 9.086 9.087 9.088 9.089 9.090 9.091 9.092 9.093 9.094 9.095 9.096 9.097 9.098 9.099 9.100 9.101 9.102 9.103 9.104 9.105 9.106 9.107 Last page of Lua error in package.lua at line 80: module 'strict' not found.
  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 Normal Reference Range Table from The University of Texas Southwestern Medical Center at Dallas. Used in Interactive Case Study Companion to Pathologic basis of disease.
  11. ↑ 11.0 11.1 11.2 11.3 Derived from molar values using molar mass of 22.99 g•mol−1
  12. ↑ 12.0 12.1 Derived from molar values using molar mass of 39.10 g•mol−1
  13. ↑ 13.00 13.01 13.02 13.03 13.04 13.05 13.06 13.07 13.08 13.09 13.10 13.11 13.12 MERCK MANUALS > Common Medical Tests > Blood Tests Last full review/revision February 2003
  14. ↑ 14.0 14.1 Derived from molar values using molar mass of 35.45 g•mol−1
  15. ↑ 15.0 15.1 Lua error in package.lua at line 80: module 'strict' not found.
  16. ↑ 16.0 16.1 16.2 16.3 Derived from molar values using molar mass of 40.08  g•mol−1
  17. ↑ 17.0 17.1 17.2 Derived from mass values using molar mass of 40.08  g•mol−1
  18. ↑ 18.00 18.01 18.02 18.03 18.04 18.05 18.06 18.07 18.08 18.09 18.10 18.11 18.12 18.13 18.14 18.15 18.16 18.17 18.18 18.19 18.20 18.21 18.22 18.23 18.24 18.25 18.26 18.27 18.28 18.29 18.30 18.31 18.32 18.33 18.34 18.35 18.36 18.37 18.38 18.39 18.40 18.41 18.42 18.43 18.44 18.45 18.46 18.47 18.48 18.49 18.50 18.51 18.52 18.53 18.54 18.55 18.56 18.57 18.58 18.59 18.60 18.61 18.62 18.63 18.64 18.65 18.66 18.67 18.68 18.69 18.70 18.71 18.72 18.73 18.74 18.75 18.76 18.77 Blood Test Results - Normal Ranges Bloodbook.Com
  19. ↑ 19.00 19.01 19.02 19.03 19.04 19.05 19.06 19.07 19.08 19.09 19.10 19.11 Lua error in package.lua at line 80: module 'strict' not found.
  20. ↑ 20.0 20.1 20.2 20.3 Diagnostic Chemicals Limited > Serum Iron-SL Assay July 15, 2005
  21. ↑ 21.00 21.01 21.02 21.03 21.04 21.05 21.06 21.07 21.08 21.09 21.10 21.11 21.12 Derived from mass values using molar mass of 55.85 g•mol−1
  22. ↑ 22.0 22.1 Table 1. Page 133" Clinical Chemistry 45, No. 1, 1999 (stating 1.9–3.3 g/L)
  23. ↑ 23.0 23.1 Derived by dividing mass values with molar mass
  24. ↑ 24.0 24.1 24.2 24.3 Ferritin by: Mark Levin, MD, Hematologist and Oncologist, Newark, NJ. Review provided by VeriMed Healthcare Network
  25. ↑ 25.0 25.1 Lua error in package.lua at line 80: module 'strict' not found. Updated: Jan 02, 2016
  26. ↑ 26.0 26.1 26.2 26.3 26.4 Derived from mass values using molar mass of 450,000 g•mol−1
  27. ↑ 27.0 27.1 Lua error in package.lua at line 80: module 'strict' not found.
  28. ↑ 28.0 28.1 Lua error in package.lua at line 80: module 'strict' not found.
  29. ↑ 29.0 29.1 29.2 29.3 Derived from molar values using molar mass of 17.03 g/mol
  30. ↑ 30.0 30.1 Derived from mass values using molar mass of 63.55 g•mol−1
  31. ↑ Reference range for copper at GPnotebook
  32. ↑ 32.0 32.1 Derived from mass using molar mass of 151kDa
  33. ↑ Lua error in package.lua at line 80: module 'strict' not found. Page 849
  34. ↑ 34.0 34.1 http://www.dlolab.com/PDFs/DLO-OCTOBER-2008-LAB-UPDATE.pdf
  35. ↑ 35.0 35.1 Derived from molar values using molar mass of 65.38 g/mol
  36. ↑ 36.0 36.1 Derived from mass values using molar mass of 65.38 g/mol
  37. ↑ 37.0 37.1 Derived from molar values using molar mass of 24.31 g/mol
  38. ↑ 38.0 38.1 Derived from mass values using molar mass of 24.31 g/mol
  39. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  40. ↑ 40.00 40.01 40.02 40.03 40.04 40.05 40.06 40.07 40.08 40.09 40.10 40.11 The Medical Education Division of the Brookside Associates--> ABG (Arterial Blood Gas) Retrieved on Dec 6, 2009
  41. ↑ 41.0 41.1 Derived from molar values using molar mass of 1.01 g•mol−1
  42. ↑ 42.0 42.1 42.2 42.3 42.4 42.5 42.6 42.7 Derived from mmHg values using 0.133322 kPa/mmHg
  43. ↑ 43.0 43.1 Derived from molar values using molar mass of 44.010 g/mol
  44. ↑ 44.0 44.1 44.2 44.3 Derived from molar values using molar mass of 61 g/mol
  45. ↑ Reference range (albumin) at GPnotebook
  46. ↑ 46.0 46.1 Derived from mass using molecular weight of 65kD
  47. ↑ 47.0 47.1 47.2 47.3 47.4 Derived from mass values using molar mass of 585g/mol
  48. ↑ 48.0 48.1 Derived from molar values using molar mass of 585g/mol
  49. ↑ 49.00 49.01 49.02 49.03 49.04 49.05 49.06 49.07 49.08 49.09 49.10 49.11 49.12 49.13 49.14 49.15 49.16 49.17 49.18 Fachwörterbuch Kompakt Medizin E-D/D-E. Author: Fritz-Jürgen Nöhring. Edition 2. Publisher:Elsevier, Urban&FischerVerlag, 2004. ISBN 3-437-15120-7, ISBN 978-3-437-15120-0. Length: 1288 pages
  50. ↑ 50.0 50.1 50.2 50.3 GPnotebook > reference range (AST) Retrieved on Dec 7, 2009
  51. ↑ 51.0 51.1 Lua error in package.lua at line 80: module 'strict' not found.
  52. ↑ 52.0 52.1 Creatine kinase at GPnotebook
  53. ↑ 53.0 53.1 53.2 53.3 Page 585 in: Lua error in package.lua at line 80: module 'strict' not found.
  54. ↑ 54.0 54.1 54.2 54.3 Muscle Information and Courses from MediaLab, Inc. > Cardiac Biomarkers Retrieved on April 22, 2010
  55. ↑ 55.0 55.1 55.2 Lua error in package.lua at line 80: module 'strict' not found.
  56. ↑ 56.0 56.1 56.2 Lua error in package.lua at line 80: module 'strict' not found.
  57. ↑ 57.0 57.1 Page 220 in: Lua error in package.lua at line 80: module 'strict' not found.
  58. ↑ 58.00 58.01 58.02 58.03 58.04 58.05 58.06 58.07 58.08 58.09 58.10 58.11 58.12 58.13 Adëeva Nutritionals Canada > Optimal blood test values Retrieved on July 9, 2009
  59. ↑ 59.0 59.1 59.2 59.3 59.4 59.5 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
  60. ↑ 60.0 60.1 60.2 60.3 Derived from values in mg/dl to mmol/l, using molar mass of 386.65 g/mol
  61. ↑ 61.0 61.1 61.2 Reference range (cholesterol) at GPnotebook
  62. ↑ 62.0 62.1 62.2 62.3 62.4 62.5 62.6 62.7 Royal College of Pathologists of Australasia; Cholesterol (HDL and LDL) - plasma or serum Last Updated: Monday, 6 August 2007
  63. ↑ 63.0 63.1 63.2 63.3 63.4 63.5 63.6 63.7 63.8 63.9 Derived from values in mmol/l, using molar mass of 386.65 g/mol
  64. ↑ What Your Cholesterol Levels Mean. American Heart Association. Retrieved on September 12, 2009
  65. ↑ American Association for Clinical Chemistry; HDL Cholesterol
  66. ↑ GP Notebook > range (reference, ca-125) Retrieved on Jan 5, 2009
  67. ↑ ClinLab Navigator > Test Interpretations > CA-125 Retrieved on March 8, 2011
  68. ↑ 68.0 68.1 Lua error in package.lua at line 80: module 'strict' not found.
  69. ↑ Carcinoembryonic Antigen(CEA) at MedicineNet
  70. ↑ 70.0 70.1 70.2 Lua error in package.lua at line 80: module 'strict' not found.
  71. ↑ The TSH Reference Range Wars: What's "Normal?", Who is Wrong, Who is Right... By Mary Shomon, About.com. Updated: June 19, 2006. About.com Health's Disease and Condition
  72. ↑ 72.0 72.1 2006 Press releases: Thyroid Imbalance? Target Your Numbers Contacts: Bryan Campbell American] Association of Clinical Endocrinologists
  73. ↑ 73.0 73.1 The TSH Reference Range Wars: What's "Normal?", Who is Wrong, Who is Right... By Mary Shomon, About.com. Updated: June 19, 2006
  74. ↑ 74.0 74.1 Lua error in package.lua at line 80: module 'strict' not found. - see Section 2. Pre-analytic factors
  75. ↑ 75.0 75.1 75.2 75.3 75.4 75.5 Free T4; Thyroxine, Free; T4, Free UNC Health Care System
  76. ↑ Derived from molar values using molar mass of 776.87 g/mol
  77. ↑ 77.0 77.1 77.2 77.3 77.4 77.5 Derived from mass values using molar mass of 776.87 g/mol
  78. ↑ 78.00 78.01 78.02 78.03 78.04 78.05 78.06 78.07 78.08 78.09 78.10 78.11 78.12 78.13 78.14 Table 4: Typical reference ranges for serum assays - Thyroid Disease Manager
  79. ↑ 79.0 79.1 79.2 79.3 Lua error in package.lua at line 80: module 'strict' not found.
  80. ↑ 80.0 80.1 80.2 80.3 Derived from mass values using molar mass of 650.98 g/mol
  81. ↑ 81.0 81.1 Lua error in package.lua at line 80: module 'strict' not found.
  82. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  83. ↑ 83.0 83.1 Life Extension Foundation > Blood Testing Protocols
  84. ↑ 84.0 84.1 Andrology Australia: Your Health > Low Testosterone > Diagnosis
  85. ↑ 85.0 85.1 85.2 85.3 Derived from mass values using molar mass of 288.42g/mol
  86. ↑ 86.0 86.1 86.2 86.3 86.4 86.5 86.6 Derived from molar values using molar mass of 288.42g/mol
  87. ↑ 87.0 87.1 87.2 87.3 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
  88. ↑ 88.0 88.1 88.2 88.3 Derived from mass values using molar mass of 330.46g/mol
  89. ↑ 89.0 89.1 89.2 89.3 89.4 89.5 89.6 89.7 89.8 89.9 reference range (FSH) GPnotebook. Retrieved on September 27, 2009
  90. ↑ 90.0 90.1 90.2 90.3 90.4 90.5 Values taken from day 1 after LH surge in: Lua error in package.lua at line 80: module 'strict' not found.
  91. ↑ 91.0 91.1 91.2 91.3 91.4 91.5 New York Hospital Queens > Services and Facilities > Patient Testing > Pathology > New York Hospital Queens Diagnostic Laboratories > Test Directory > Reference Ranges Retrieved on Nov 8, 2009
  92. ↑ 92.0 92.1 Mayo Medical Laboratories > Test ID: LH, Luteinizing Hormone (LH), Serum, retrieved December 2012
  93. ↑ 93.0 93.1 93.2 93.3 93.4 93.5 93.6 GPNotebook - reference range (oestradiol) Retrieved on September 27, 2009
  94. ↑ 94.0 94.1 94.2 94.3 94.4 94.5 94.6 Derived from molar values using molar mass of 272.38g/mol
  95. ↑ 95.0 95.1 95.2 95.3 Total amount multiplied by 0.022 according to 2.2% presented in: Lua error in package.lua at line 80: module 'strict' not found.
  96. ↑ 96.0 96.1 Derived from mass values using molar mass of 314.46 g/mol
  97. ↑ 97.0 97.1 Bhattacharya Sudhindra Mohan (July/August 2005) Mid-luteal phase plasma progesterone levels in spontaneous and clomiphene citrate induced conception cycles J Obstet Gynecol India Vol. 55, No. 4 : July/August 2005 Pg 350-352
  98. ↑ 98.0 98.1 Dehydroepiandrosterone Sulfate (DHEA-S), Serum at Mayo Foundation For Medical Education And Research. Retrieved July 2012
  99. ↑ 99.0 99.1 99.2 99.3 Unit Code 91215 at Mayo Clinic Medical Laboratories. Retrieved April 2011
  100. ↑ 100.0 100.1 Antimullerian Hormone (AMH), Serum from Mayo Medical Laboratories. Retrieved April 2012.
  101. ↑ 101.0 101.1 Derived from mass values using 140,000 g/mol, as given in:
    • Lua error in package.lua at line 80: module 'strict' not found.
  102. ↑ 102.0 102.1 Derived from mass values using molar mass of 4540g/mol. This molar mass was taken from: PROOPIOMELANOCORTIN; NCBI --> POMC Retrieved on September 28, 2009
  103. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  104. ↑ Derived from molar values using molar mass of 4540g/mol. This molar mass was taken from: PROOPIOMELANOCORTIN; NCBI --> POMC Retrieved on September 28, 2009
  105. ↑ 105.0 105.1 105.2 105.3 Biochemistry Reference Ranges at Good Hope Hospital Retrieved on Nov 8, 2009
  106. ↑ 106.0 106.1 106.2 106.3 Derived from molar values using molar mass of 362 g/mol
  107. ↑ 107.0 107.1 107.2 107.3 107.4 107.5 107.6 107.7 Lua error in package.lua at line 80: module 'strict' not found.
  108. ↑ 108.00 108.01 108.02 108.03 108.04 108.05 108.06 108.07 108.08 108.09 108.10 108.11 108.12 108.13 108.14 108.15 Taken from the assay method giving the lowest and highest estimate, respectively, from Table 2 in: Lua error in package.lua at line 80: module 'strict' not found.
  109. ↑ 109.0 109.1 Derived from molar values using molar mass of 9.4 kDa
  110. ↑ 110.0 110.1 Table 2 in: Lua error in package.lua at line 80: module 'strict' not found.
  111. ↑ 111.0 111.1 Derived from mass values using molar mass of 9.4 kDa
  112. ↑ 112.0 112.1 112.2 112.3 112.4 112.5 Derived from molar values using molar mass 400.6 g/mol
  113. ↑ 113.0 113.1 113.2 113.3 Lua error in package.lua at line 80: module 'strict' not found. Retrieved December 10, 2008 through Google Book Search.
  114. ↑ 114.0 114.1 114.2 114.3 Lua error in package.lua at line 80: module 'strict' not found.
  115. ↑ 115.0 115.1 115.2 115.3 Lua error in package.lua at line 80: module 'strict' not found.
  116. ↑ 116.0 116.1 116.2 116.3 116.4 116.5 116.6 116.7 Lua error in package.lua at line 80: module 'strict' not found.
  117. ↑ 117.0 117.1 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
  118. ↑ 118.0 118.1 Lua error in package.lua at line 80: module 'strict' not found.
  119. ↑ 119.0 119.1 119.2 119.3 New Assays for Aldosterone, Renin and Parathyroid Hormone University of Washington, Department of Laboratory Medicine. Retrieved Mars 2011
  120. ↑ 120.0 120.1 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
  121. ↑ 121.0 121.1 Converted from mass values using molar mass of 360.44 g/mol
  122. ↑ 122.0 122.1 122.2 122.3 Lua error in package.lua at line 80: module 'strict' not found.
  123. ↑ 123.0 123.1 123.2 123.3 123.4 123.5 Central Manchester University Hospitals --> Reference ranges Retrieved on July 9, 2009
  124. ↑ University of Kentucky Chandler Medical Center > Clinical Lab Reference Range Guide Retrieved on April 28, 2009
  125. ↑ 125.0 125.1 125.2 125.3 125.4 Derived from mass values using molar mass of 441 mol−1
  126. ↑ 126.0 126.1 GPnotebook > B12 Retrieved on April 28, 2009
  127. ↑ 127.0 127.1 Derived form molar values using molar mass of 1355g/mol
  128. ↑ 128.0 128.1 Derived from mass values using molar mass of 1355g/mol
  129. ↑ 129.0 129.1 129.2 129.3 The Doctor's Doctor: Homocysteine
  130. ↑ 130.0 130.1 130.2 130.3 Derived from molar values using molar massof 135 g/mol
  131. ↑ 131.0 131.1 Derived from mass values using molar mass of 176 grams per mol
  132. ↑ 132.0 132.1 132.2 For Driving under the influence by country, see Drunk driving law by country
  133. ↑ Derived from mass values using molar mass of 46g/mol
  134. ↑ 134.0 134.1 134.2 134.3 134.4 Derived from mass values using 64,500 g/mol. This molar mass was taken from: Lua error in package.lua at line 80: module 'strict' not found.
  135. ↑ 135.0 135.1 135.2 135.3 Normal Lab Values at Marshall University Joan C. Edwards School of Medicine. Retrieved July 2013
  136. ↑ 136.0 136.1 136.2 136.3 136.4 136.5 136.6 136.7 molar concentration as given for hemoglobin above, but multiplied by 4, according to: Lua error in package.lua at line 80: module 'strict' not found.
  137. ↑ 137.0 137.1 137.2 137.3 Derived from mass concentration, using molar mass of 64,458 g/mol. This molar mass was taken from: Lua error in package.lua at line 80: module 'strict' not found.. Subsequently, 1 g/dL = 0.1551 mmol/L
  138. ↑ 138.0 138.1 138.2 138.3 138.4 138.5 138.6 138.7 lymphomation.org > Tests & Imaging > Labs > Complete Blood Count Retrieved on May 14, 2009
  139. ↑ 139.00 139.01 139.02 139.03 139.04 139.05 139.06 139.07 139.08 139.09 139.10 139.11 139.12 139.13 139.14 139.15 139.16 139.17 139.18 139.19 139.20 Clinical Laboratory Medicine. By Kenneth D. McClatchey. Page 807.
  140. ↑ Determination of monocyte count by hematological analyzers, manual method and flow cytometry in polish population Central European Journal of Immunology 1-2/2006. (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,
  141. ↑ 141.0 141.1 141.2 141.3 141.4 gpnotebook.co.uk > blood constituents (reference range) Retrieved on May 14, 2009
  142. ↑ 142.0 142.1 Lua error in package.lua at line 80: module 'strict' not found.
  143. ↑ 143.0 143.1 Normal Values: RBC, Hgb, Hct, Indices, RDW, Platelets, and MPV (Conventional Units) From labcareplus. Retrieved 4 nov, 2010
  144. ↑ 144.0 144.1 Lua error in package.lua at line 80: module 'strict' not found.
  145. ↑ 145.0 145.1 MedlinePlus Encyclopedia 003652
  146. ↑ 146.0 146.1 Antithrombin III at eMedicine
  147. ↑ 147.0 147.1 Antithrombin CO000300 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; 327-358.
  148. ↑ 148.0 148.1 [1] Retrieved on November 20, 2009
  149. ↑ 149.0 149.1 Lua error in package.lua at line 80: module 'strict' not found.
  150. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  151. ↑ C-reactive protein at GPnotebook
  152. ↑ 2730 Serum C-Reactive Protein values in Diabetics with Periodontal Disease A.R. Choudhury, and S. Rahman, Birdem, Diabetic Association of Bangladesh, Dhaka, Bangladesh. (the diabetics were not used to determine the reference ranges)
  153. ↑ 153.0 153.1 153.2 153.3 Derived from mass using molar mass of 25,106 g/mol
  154. ↑ 154.0 154.1 Lua error in package.lua at line 80: module 'strict' not found.
  155. ↑ 155.0 155.1 Derived from mass values using molar mass of 44324.5 g/mol
  156. ↑ 156.0 156.1 Derived from molar values using molar mass of 44324.5 g/mol
  157. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  158. ↑ 158.0 158.1 158.2 158.3 158.4 158.5 158.6 158.7 158.8 158.9 The Society for American Clinical Laboratory Science > Chemistry Tests > Immunoglobulins Retrieved on Nov 26, 2009
  159. ↑ All values cited from Chronolab are given for ELISA
  160. ↑ 160.00 160.01 160.02 160.03 160.04 160.05 160.06 160.07 160.08 160.09 160.10 160.11 160.12 160.13 160.14 160.15 160.16 160.17 160.18 160.19 160.20 160.21 160.22 160.23 160.24 160.25 160.26 160.27 160.28 160.29 160.30 160.31 160.32 160.33 160.34 160.35 160.36 160.37 160.38 160.39 160.40 160.41 160.42 chronolab.com > Autoantibodies associated with rheumatic diseases > Reference ranges Retrieved on April 29, 2010
  161. ↑ 161.0 161.1 Lua error in package.lua at line 80: module 'strict' not found.
  162. ↑ Reference range (amylase) at GPnotebook
  163. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  164. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  165. ↑ 165.0 165.1 Lua error in package.lua at line 80: module 'strict' not found.
  166. ↑ 166.0 166.1 166.2 166.3 Lua error in package.lua at line 80: module 'strict' not found.
  167. ↑ 167.0 167.1 167.2 167.3 167.4 167.5 167.6 167.7 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
  168. ↑ 168.0 168.1 MedlinePlus Encyclopedia Glucose tolerance test
  169. ↑ 169.0 169.1 169.2 Derived from molar values using molar mass of 180g/mol
  170. ↑ 170.0 170.1 Derived from mass values using molar mass of 180g/mol
  171. ↑ 171.0 171.1 Lua error in package.lua at line 80: module 'strict' not found. Last revised 1/15/2013
  172. ↑ 172.0 172.1 172.2 172.3 Derived from mass values using molar mass of 90.08 g/mol
  173. ↑ 173.0 173.1 Derived from mass values using molar mass of 88.06 g/mol
  174. ↑ 174.0 174.1 Ketones at eMedicine
  175. ↑ 175.0 175.1 175.2 175.3 Page 700 in:
    Lua error in package.lua at line 80: module 'strict' not found.
  176. ↑ 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 Revision 2 December 2010, Retrieved 5 May 2011
  177. ↑ 177.0 177.1 Lua error in package.lua at line 80: module 'strict' not found.
  178. ↑ 178.0 178.1 R. Baselt, Disposition of Toxic Drugs and Chemicals in Man, 8th edition, Biomedical Publications, Foster City, CA, 2008, pp. 851–854.
  179. ↑ One study (Lua error in package.lua at line 80: module 'strict' not found.) 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 (Lua error in package.lua at line 80: module 'strict' not found.) concluded the higher rate of relapse for the "low" dose was due to abrupt changes in the lithium serum levels[improper synthesis?]
  180. ↑ 180.0 180.1 Lua error in package.lua at line 80: module 'strict' not found.

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