Normal Laboratory Values – Patient Test Charts

Normal Laboratory Values (Haematology Reference Values)

In the following tables, normal haematology reference values for commonly requested laboratory tests are listed in traditional units and in SI units. The tables are a guideline only. Values are method dependent and normal lab values may vary between laboratories.

DeterminationNormal Reference Value
Conventional unitsSI units
Blood, Plasma or Serum
Ammonia (NH3) – diffusion20-120 mcg/dl12-70 mcmol/L
Ammonia Nitrogen15-45 μg/dl11-32 μmol/L
Amylase35-118 IU/L0.58-1.97 mckat/L
Anion gap (Na+-[Cl + HCO3 ]) (P)7-16 mEq/L7-16 mmol/L
Antithrombin III (AT III)80-120 U/dl800-1200 U/L
Bicarbonate
Arterial21-28 mEq/L21-28 mmol/L
Venous22-29 mEq/L22-29 mmol/L
Bilirubin
Conjugated (direct) Total≤ 0.2 mg/dl
&
0.1-1 mg/dl
≤ 4 mcmol/L
&
2-18 mcmol/L
Calcitonin< 100 pg/ml< 100 ng/L
Calcium
Total8.6-10.3 mg/dl2.2-2.74 mmol/L
Ionized4.4-5.1 mg/dl1-1.3 mmol/L
Carbon dioxide content (plasma)21-32 mmol/L21-32 mmol/L
Carcinoembryonic antigen< 3 ng/ml< 3 mcg/L
Chloride95-110 mEq/L95-110 mmol/L
Coagulation screen
Bleeding time3-9.5 min180-570 sec
Prothrombin time10-13 sec10-13 sec
Partial thromboplastin time (activated)22-37 sec22-37 sec
Protein C0.7-1.4 μ/ml700-1400 U/ml
Protein S0.7-1.4 μ/ml700-1400 U/ml
Copper, total70-160 mcg/dl11-25 mcmol/L
Corticotropin (ACTH adrenocorticotropic hormone) – 0800 hr< 60 pg/ml< 13.2 pmol/L
Cortisol
0800 hr5-30 mcg/dl138-810 nmol/L
1800 hr2-15 mcg/dl50-410 nmol/L
2000 hr≤ 50% of 0800 hr≤ 50% of 0800 hr
Creatine kinase
Female20-170 IU/L0.33-2.83 mckat/L
Male30-220 IU/L0.5-3.67 mckat/L
Creatinine kinase isoenzymes, MB fraction0-12 IU/L0-0.2 mckat/L
Creatinine0.5-1.7 mg/dl44-150 mcmol/L
Fibrinogen (coagulation factor I)150-360 mg/dl1.5-3.6 g/L
Follicle-stimulating hormone (FSH)
Female2-13 mlU/ml2-13 IU/L
Midcycle5-22 mlU/ml5-22 IU/L
Male1-8 mlU/ml1-8 IU/L
Glucose, fasting65-115 mg/dl3.6-6.3 mmol/L
Glucose Tolerance Test (Oral)
(mg/dl)(mmol/L)
NormalDiabeticNormalDiabetic
Fasting70-105> 1403.9-5.8> 7.8
60 min120-170³ 2006.7-9.4³ 11.1
90 min100-140³ 2005.6-7.8³ 11.1
120 min70-120³ 1403.9-6.7³ 7.8
(g) – Glutamyltransferase (GGT)
Male9-50 units/L9-50 units/L
Female8-40 units/L8-40 units/L
Haptoglobin44-303 mg/dl0.44-3.03 g/L
Hematologic Tests
Fibrinogen200-400 mg/dl2-4 g/L
Hematocrit (Hct)
female36%-44.6%0.36-0.446 fraction of 1
male40.7%-50.3%0.4-0.503 fraction of 1
Hemoglobin A 1C5.3%-7.5% of total Hgb0.053-0.075
Hemoglobin (Hb)
female12.1-15.3 g/dl121-153 g/L
male13.8-17.5 g/dl138-175 g/L
Leukocyte count (WBC)3800-9800/mcl3.8-9.8 x 109/L
Erythrocyte count (RBC)
female3.5-5 x 106/mcl3.5-5 x 1012/L
male4.3-5.9 x 106/mcl4.3-5.9 x 1012/L
Mean corpuscular volume (MCV)80-97.6 mcm380-97.6 fl
Mean corpuscular hemoglobin (MCH)27-33 pg/cell1.66-2.09 fmol/cell
Mean corpuscular hemoglobin concentrate (MCHC)33-36 g/dl20.3-22 mmol/L
Erythrocyte sedimentation rate (sedrate, ESR)≤30 mm/hr≤30 mm/hr
Erythrocyte enzymes
Glucose-6 – Pphosphate dehydrognase (G-6-PD)250-5000 units/106 cells250-5000 mcunits/cell
DeterminationReference Value
(Conventional units)(SI units)
Blood, Plasma or Serum:

Ammonia (NH3) – diffusion

20-120 mcg/dl

12-70 mcmol/L

Ammonia Nitrogen15-45 μg/dl11-32 μmol/L
Amylase35-118 IU/L0.58-1.97 mckat/L
Anion gap (Na+-[Cl + HCO3]) (P)7-16 mEq/L7-16 mmol/L
Antithrombin III (AT III)80-120 U/dl800-1200 U/L
Bicarbonate:Arterial
Venous
21-28 mEq/L
22-29 mEq/L
21-28 mmol/L
22-29 mmol/L
Bilirubin: Conjugated (direct) Total£ 0.2 mg/dl
(0.1-1 mg/dl)
£ 4 mcmol/L
(2-18 mcmol/L)
Calcitonin< 100 pg/ml< 100 ng/L
Calcium:Total
Ionized
8.6-10.3 mg/dl
4.4-5.1 mg/dl
2.2-2.74 mmol/L
1-1.3 mmol/L
Carbon dioxide content (plasma)21-32 mmol/L21-32 mmol/L
Carcinoembryonic antigen< 3 ng/ml< 3 mcg/L
Chloride95-110 mEq/L95-110 mmol/L
Coagulation screen:
Bleeding time
Prothrombin time
Partial thromboplastin time (activated)
Protein C
Protein S
3-9.5 min
10-13 sec
22-37 sec

0.7-1.4 μ/ml
0.7-1.4 μ/ml

180-570 sec
10-13 sec
22-37 sec

700-1400 U/ml
700-1400 U/ml

Copper, total70-160 mcg/dl11-25 mcmol/L
Corticotropin
(ACTH adrenocorticotropic hormone) – 0800 hr
< 60 pg/ml< 13.2 pmol/L
Cortisol:0800 hr
1800 hr
2000 hr
5-30 mcg/dl
2-15 mcg/dl
≤ 50% of 0800 hr
138-810 nmol/L
50-410 nmol/L
≤ 50% of 0800 hr
Creatine kinase:Female
Male
20-170 IU/L
30-220 IU/L
0.33-2.83 mckat/L
0.5-3.67 mckat/L
Creatinine kinase isoenzymes, MB fraction0-12 IU/L0-0.2 mckat/L
Creatinine0.5-1.7 mg/dl44-150 mcmol/L
Fibrinogen (coagulation factor I)150-360 mg/dl1.5-3.6 g/L
Follicle-stimulating hormone (FSH):
Female
Midcycle
Male
2-13 mlU/ml
5-22 mlU/ml
1-8 mlU/ml
2-13 IU/L
5-22 IU/L
1-8 IU/L
Glucose, fasting65-115 mg/dl3.6-6.3 mmol/L
Glucose Tolerance Test (Oral)

Fasting
60 min
90 min
120 min

(mg/dl)
NormalDiabetic
70-105> 140
120-170³ 200
100-140³ 200
70-120³ 140
(mmol/L)
NormalDiabetic
3.9-5.8> 7.8
6.7-9.4³ 11.1
5.6-7.8³ 11.1
3.9-6.7³ 7.8
(g) -Glutamyltransferase (GGT):
Male
Female
9-50 units/L
8-40 units/L
9-50 units/L
8-40 units/L
Haptoglobin44-303 mg/dl0.44-3.03 g/L
DeterminationReference Value
Conventional unitsSI units
Hematologic tests:
Fibrinogen

Hematocrit (Hct),
female
male
Hemoglobin A 1C

Hemoglobin (Hb),
female
male

Leukocyte count (WBC)

Erythrocyte count (RBC):
female
male

Mean corpuscular volume (MCV)
Mean corpuscular hemoglobin (MCH)

Mean corpuscular hemoglobin
concentrate (MCHC)

Erythrocyte sedimentation rate
(sedrate, ESR)

200-400 mg/dl

36%-44.6%
40.7%-50.3%
5.3%-7.5% of total Hgb

12.1-15.3 g/dl
13.8-17.5 g/dl

3800-9800/mcl

3.5-5 x 106/mcl
4.3-5.9 x 106/mcl

80-97.6 mcm3
27-33 pg/cell

33-36 g/dl

£30 mm/hr

2-4 g/L

0.36-0.446 fraction of 1
0.4-0.503 fraction of 1
0.053-0.075

121-153 g/L
138-175 g/L

3.8-9.8 x 109/L

3.5-5 x 1012/L
4.3-5.9 x 1012/L

80-97.6 fl
1.66-2.09 fmol/cell

20.3-22 mmol/L

£ 30 mm/hr

Erythrocyte enzymes:

Glucose-6 –
Pphosphate dehydrognase
(G-6-PD)

Ferritin
Folic acid: normal
Platelet count

Reticulocytes

Vitamin B12

250-5000 units/106 cells

10-383 ng/ml
>3.1-12.4 ng/ml
150-450 x 103/mcl

0.5%-1.5% of erythrocytes

223-1132 pg/ml

250-5000 mcunits/cell

23-862 pmol/L
7-28.1 nmol/L
150-450 x 109/L

0.005-0.015

165-835 pmol/L

Iron:Female
Male
30-160 mcg/dl
45-160 mcg/dl
5.4-31.3 mcmol/L
8.1-31.3 mcmol/L
Iron binding capacity220-420 mcg/dl39.4-75.2 mcmol/L
Isocitrate dehydrogenase1.2-7 units/L1.2-7 units/L
Isoenzymes

Fraction 1

Fraction 2

Fraction 3

Fraction 4

Fraction 5

 

14%-26% of total

29%-39% of total

20%-26% of total

8%-16% of total

6%-16% of total

 

0.14-0.26 fraction of total
0.29-0.39 fraction of total
0.20-0.26 fraction of total
0.08-0.16 fraction of total
0.06-0.16 fraction of total

Lactate dehydrogenase100-250 IU/L1.67-4.17 mckat/L
Lactic acid (lactate)6-19 mg/dl0.7-2.1 mmol/L
Lead£ 50 mcg/dl£ 2.41 mcmol/L
Lipase10-150 units/L10-150 units/L
Lipids:
Total Cholesterol
Desirable

Borderline-high
High
LDL
Desirable

Borderline-high
High
HDL (low)
Triglycerides
Desirable

Borderline-high
High
Very high

< 200 mg/dl
200-239 mg/dl

> 239 mg/dl
< 130 mg/dl
130-159 mg/dl

> 159 mg/dl
< 35 mg/dl
< 200 mg/dl
200-400 mg/dl

400-1000 mg/dl
> 1000 mg/dl

< 5.2 mmol/L
< 5.2-6.2 mmol/L

> 6.2 mmol/L
< 3.36 mmol/L
3.36-4.11 mmol/L

> 4.11 mmol/L
< 0.91 mmol/L
< 2.26 mmol/L
2.26-4.52 mmol/L

4.52-11.3 mmol/L
> 11.3 mmol/L

Magnesium1.3-2.2 mEq/L0.65-1.1 mmol/L
Osmolality280-300 mOsm/kg280-300 mmol/kg
Oxygen saturation (arterial)94%-100%0.94 – fraction of 1
PCO2, arterial35-45 mm Hg4.7-6 kPa
pH, arterial7.35-7.457.35-7.45
DeterminationReference Value
Conventional unitsSI units
PO, arterial: Breathing room air
On 100% O
80-105 mm Hg
> 500 mm Hg
10.6-14 kPa
Phosphatase (acid), total at 37�C0.13-0.63 IU/L2.2-10.5 IU/L or
2.2-10.5 mckat/L
Phosphatase alkaline20-130 IU/L20-130 IU/L or
0.33-2.17 mckat/L
Phosphorus, inorganic, (phosphate)2.5-5 mg/dl0.8-1.6 mmol/L
Potassium3.5-5 mEq/L3.5-5 mmol/L
Progesterone
Female
Follicular phase
Luteal phase
Male
0.1-1.5 ng/ml
0.1-1.5 ng/ml
2.5-28 ng/ml
< 0.5 ng/ml
0.32-4.8 nmol/L
0.32-4.8 nmol/L
8-89 nmol/L
< 1.6 nmol/L
Prolactin1.4-24.2 ng/ml1.4-24.2 mcg/L
Prostate specific antigen
Protein: Total
Albumin
Globulin
0-4 ng/ml
6-8 g/dl
3.6-5 g/dl
2.3-3.5 g/dl
0-4 ng/ml
60-80 g/L
36-50 g/L
23-35 g/L
Rheumatoid factor< 60 IU/ml< 60 kIU/L
Sodium135-147 mEq/L135-147 mmol/L
Testosterone:
Female
Male
6-86 ng/dl
270-1070 ng/dl
0.21-3 nmol/L
9.3-37 nmol/L
Thyroid Hormone Function Tests:

Thyroid-stimulating hormone (TSH)
Thyroxine-binding globulin capacity
Total triiodothyronine (T3)
Total thyroxine by RIA (T4)
T3 resin uptake

0.35-6.2 mcU/ml
10-26 mcg/dl
75-220 ng/dl
4-11 mcg/dl
25%-38%

0.35-6.2 mU/L
100-260 mcg/L
1.2-3.4 nmol/L
51-142 nmol/L
0.25-0.38 fraction of 1

Transaminase, AST (aspartate aminotransferase, SGOT)11-47 IU/L0.18-0.78 mckat/L
Transaminase, ALT (alanine aminotransferase, SGPT)7-53 IU/L0.12-0.88 mckat/L
Transferrin220-400 mg/dL2.20-4.00 g/L
Urea nitrogen (BUN)8-25 mg/dl2.9-8.9 mmol/L
Uric acid3-8 mg/dl179-476 mcmol/L
Vitamin A (retinol)15-60 mcg/dl0.52-2.09 mcmol/L
Zinc50-150 mcg/dl7.7-23 mcmol/L

1 Age dependent
2 Infants and adolescents up to 104 U/L
3 Infants in the first year up to 6 mg/dl

Urine
DeterminationReference Value
Conventional unitsSI units
Calcium50-250 mcg/day1.25-6.25 mmol/day
Catecholamines:

Epinephrine
Norepinephrine

< 20 mcg/day
< 100 mcg/day

< 109 nmol/day
< 590 nmol/day

Catecholamines, 24-hr< 110 μg< 650 nmol
Copper15-60 mcg/day0.24-0.95 mcmol/day
Creatinine:

Child
Adolescent
Female
Male

8-22 mg/kg
8-30 mg/kg
0.6-1.5 g/day
0.8-1.8 g/day

71-195 μmol/kg
71-265 μmol/kg
5.3-13.3 mmol/day
7.1-15.9 mmol/day

pH4.5-84.5-8
Phosphate0.9-1.3 g/day29-42 mmol/day
Potassium25-100 mEq/day25-100 mmol/day
Protein

Total
At rest

1-14 mg/dL
50-80 mg/day

10-140 mg/L
50-80 mg/day

Protein, quantitative< 150 mg/day< 0.15 g/day
Sodium100-250 mEq/day100-250 mmol/day
Specific gravity, random1.002-1.0301.002-1.030
Uric acid, 24-hr250-750 mg1.48-4.43 mmol

1 Diet dependent.

Drug Levels*
Drug DeterminationReference Value
Conventional unitsSI units
AminoglycosidesAmikacin
(trough)
(peak)
1-8 mcg/ml
1.7-13.7 mcmol/L
20-30 mcg/ml
34-51 mcmol/L
Gentamicin
(trough)
(peak)
0.5-2 mcg/ml
6-10 mcg/ml
1-4.2 mcmol/L
12.5-20.9 mcmol/L
Kanamycin
(trough)
(peak)
5-10 mcg/ml
20-25 mcg/ml
nd
nd
Netilimicin
(trough)
(peak)
0.5-2 mcg/ml
6-10 mcg/ml
nd
nd
Streptomycin
(trough)
(peak)
< 5 mcg/ml
5-20 mcg/ml
nd
nd
Tobramycin
(trough)
(peak)
0.5-2 mcg/ml
5-20 mcg/ml
1.1-4.3 mcmol/L
12.8-21.8 mcmol/L
Drug DeterminationReference Value
Conventional unitsSI units
AntiarrhythmicsAmiodarone0.5-2.5 mcg/ml1.5-4 mcmol/L
Bretylium0.5-1.5 mcg/mlnd
Digitoxin9-25 mcg/L11.8-32.8 nmol/L
Digoxin0.8-2 ng/ml0.9-2.5 nmol/L
Disopyramide2-8 mcg/ml6-18 mcmol/L
Flecainide0.2-1 mcg/mlnd
Lidocaine1.5-6 mcg/ml4.5-21.5 mcmol/L
Mexiletine0.5-2 mcg/mlnd
Procainamide4-8 mcg/ml17-34 mcmol/ml
Propranolol50-200 ng/ml190-770 nmol/L
Quinidine2-6 mcg/ml4.6-9.2 mcmol/L
Tocainide4-10 mcg/mlnd
Verapamil0.08-0.3 mcg/mlnd
AnticonvulsantsCarbamazepine4-12 mcg/ml17-51 mcmol/L
Phenobarbital10-40 mcg/ml43-172 mcmol/L
Phenytoin10-20 mcg/ml40-80 mcmol/L
Primidone4-12 mcg/ml18-55 mcmol/L
Valproic Acid40-100 mcg/ml280-700 mcmol/L
AntidepressantsAmitriptyline110-250 ng/ml500-900 nmol/L
Amoxapine200-500 ng/mlnd
Bupropion25-100 ng/mlnd
Clomipramine80-100 ng/mlnd
Desipramine115-300 ng/mlnd
Doxepin110-250 ng/mlnd
Imipramine225-350 ng/mlnd
Maprotiline200-300 ng/mlnd
Nortriptyline50-150 ng/mlnd
Protriptyline70-250 ng/mlnd
Trazodone800-1600 ng/mlnd
AntipsychoticsChlorpromazine50-300 ng/ml150-950 nmol/L
Fluphenazine0.13-2.8 ng/mlnd
Haloperidol5-20 ng/mlnd
Perphenazine0.8-1.2 ng/mlnd
Thiothixene2-57 ng/mlnd
Drug DeterminationReference Value
Conventional unitsSI units
MiscellaneousAmantadine
Amrinone
300 ng/ml
3.7 mcg/ml
nd
nd
Chloramphenicol10-20 mcg/ml31-62 mcmol/L
Cyclosporine250-800 ng/ml
(whole blood, RIA)
50-300 ng/ml (plasma, RIA)
nd
nd
Ethanol0 mg/dl0 mmol/L
Hydralazine100 ng/mlnd
Lithium0.6-1.2 mEq/L0.6-1.2 mmol/L
Salicylate100-300 mg/L724-2172 mcmol/L
Sulfonamide5-15 mg/dlnd
Terbutaline0.5-4.1 ng/mlnd
Theophylline10-20 mcg/ml55-110 mcmol/L
Vancomycin
(trough)
(peak)
5-15 ng/ml
20-40 mcg/ml
nd
nd

* The values given are generally accepted as desirable for treatment without toxicity for most patients. However, exceptions are not uncommon.
1 nd = No data available.
2 Parent drug plus N-desmethyl metabolite.
3 24-hour trough values.
4 Toxic: 50-100 mg/dl (10.9-21.7 mmol/L).

The following table is adopted from the Sixth Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure, National Institutes of Health.

Classification of Blood Pressure *
CategoryReference value
Systolic (mm Hg)Diastolic (mm Hg)
Optimal< 120and< 80
Normal< 130and< 85
High-normal130-139or85-89
Hypertension
Stage 1
Stage 2
Stage 3
140-159
160-179
³ 180
or
or
or
90-99
100-109
³ 110

* For adults age 18 and older who are not taking antihypertensive drugs and not acutely ill. When systolic and diastolic blood pressures fall into different categories, the higher category should be selected to classify the individual’s blood pressure status. In addition to classifying stages of hypertension on the basis of average blood pressure levels, clinicians should specify presence or absence of target organ disease and additional risk factors.
1 Optimal blood pressure with respect to cardiovascular risk is below 120/88 m Hg. However, unusually low readings should be evaluated for clinical significance.
2 Based on the average of two or more readings taken at each of two or more visits after an initial screening.