Test

Conventional units

SI units

Albumin

3.5-5 g/dL

35-50 g/L

Alkaline phosphatase

Adults

30-120 units/L

0.5-2 nkat/L

Children

< 350 units/L

< 350 units/L

Adolescent males

< 500 units/L

< 500 units/L

Adolescent females

25-100 units/L

25-100 units/L

Amylase

0.58-1.97 mckat/L

35-118 IU/L

Anion gap

7-16 mEq/L

7-16 mmol/L

Arterial blood gases (ABG)

HCO₃

21-28 mEq/L

21-28 mmol/L

O₂ saturation

94-100%

0.94-1

pH

7.35-7.45

7.35-7.45

PO₂

80-105 mmHg

10.6-14 kPa

PCO₂

35-45 mmHg

4.7-6 kPa

Basal metabolic panel (BMP)

Bicarbonate

22-29 mEq/L

22-29 mmol/L

Blood urea nitrogen (BUN)

Adults

8-25 mg/dL

2.9-8.9 mmol/L

Children

5-18 mg/dL

1.8-6.4 mmol/L

Chloride

97-110 mEq/L

97-110 mmol/L

Creatinine

Males

0.7-1.3 mg/dL

62-115 μmol/L

Females

0.6-1.1 mg/dL

53-97 μmol/L

Glucose (fasting, plasma)

65-109 mg/dL

3.6-6 mmol/L

Potassium

3.5-5 mEq/L

3.5-5 mmol/L

Sodium

136-145 mEq/L

136-145 mmol/L

Blood pressure (mm Hg)

Normal

< 120/< 80

< 120/< 80

Prehypertension

120-139/80-89

120-139/80-89

Hypertension

Stage 1

140-159/90-99

140-159/90-99

Stage 2

≥ 160/100

≥ 160/100

Hypertensive crisis

> 180/> 120

> 180/> 120

Isolated systolic

> 140/< 90

> 140/< 90

Calcitonin

< 100 pg/mL

< 100 ng/L

Calcium

8.6-10.3 mg/dL

2.15-2.58 mmol/L

Carbon dioxide

21-30 mEq/L

21-30 mmol/L

Coagulation screen

Activated partial thromboplastin time (aPTT)

22-37 seconds

22-37 seconds

Antithrombin III (antigenic)

22-39 mg/dL

220-390 mg/L

Antithrombin III (functional)

80-130%

0.8-1.3 units/L

Bleeding time

3-9.5 min

180-570 seconds

Protein C

0.7-1.4 μ/mL

700-1,400 units/mL

Protein S

0.7-1.4 μ/mL

700-1,400 units/mL

Prothrombin time (PT)

10-13 seconds

10-13 seconds

Complete blood count (CBC)

Hemoglobin (Hb)

Males

13.8-17.5 g/dL

138-175 g/L

Females

12.1-15.3 g/dL

121-153 g/L

Hematocrit (Hct)

Males

40.7-50.3%

0.407-0.503

Females

36-46%

0.36--0.46

Mean corpuscular volume (MCV)

80-100 mcm³

80-100 fL

Mean corpuscular hemoglobin (MCH)

27-33 pg/cell

1.66-2.09 fmol/cell

Mean corpuscular hemoglobin concentrate (MCHC)

33-36 g/dL

20.3-22 mmol/L

Platelet count

150-350 × 10³/mm³

150-350 × 10⁹/L

Red blood cells (RBC)

Males

4.5-5.9 × 10⁶/mm³

4.5-5.9 × 10¹²/L

Females

4-5.2 × 10⁶/mm³

4-5-2 × 10¹²/L

White blood cells (WBC)

4.5-11 × 10³ cells/mm³

4.5-11 × 10⁹ cells/L

White blood cell differential

Basophils

0-0.19 × 10³ cells/microL

0-0.19 × 10⁹ cells/L

Eosinophils

0-0.45 × 10³ cells/microL

0-0.45 × 10⁹ cells/L

Lymphocytes

1.5-4 × 10³ cells/microL

1.5-4 × 10⁹ cells/L

Monocytes

0.2-0.95 × 10³ cells/microL

0.2-0.95 × 10⁹ cells/L

Neutrophils (absolute)

1.8-7.7 × 10³ cells/microL

1.8-7.7 × 10⁹ cells/L

Corticotropin (ACTH) 08:00h

< 60 pg/mL

< 13.2 pmol/L

Cortisol 08:00h

5-30 mcg/dL

138-810 nmol/L

Creatinine kinase

Males

30-220 IU/L

0.5-3.67 mckat/L

Females

20-170 IU/L

0.33-2.83 mckat/L

Glucose tolerance test

Baseline fasting blood glucose

70-105 mg/dL

3.9-5.8 mmol/L

60-minute fasting blood glucose

120-170 mg/dL

6.7-9.4 mmol/L

90-minute fasting blood glucose

100-140 mg/dL

5.6-7.8 mmol/L

120-minute fasting blood glucose

70-120 mg/dL

3.9-6.7 mmol/L

Hematologic tests

Erythrocyte sedimentation rate (ESR)

Adult males

0-17 mm/h

0-17 mm/h

Adult females

1-25 mm/h

1-25 mm/h

Children

0-10 mm/h

0-10 mm/h

Ferritin

Males

30-300 ng/mL

30-300 mcg/L

Females

10-200 ng/mL

10-200 mcg/L

Fibrinogen

150-400 mg/dL

1.5-4 g/L

Hemoglobin A1c

5.3-7.5%

0.053-0.075

Iron

Males

45-160 mcg/dL

8.1-31.3 mcmol/L

Females

30-160 mcg/dL

5.4-31.3 mcmol/L

Reticulocytes

0.5-1.5%

0.005-0.015

Total iron binding capacity (TIBC)

220-420 mcg/dL

39.4-75.2 mcmol/L

Transferrin saturation

Males

20-50%

0.20-0.50

Females

15-50%

0.15-0.5

Vitamin B12

223-1,132 pg/mL

165-835 pmol/L

Isoenzymes

Creatine phosphokinase (MB)

0-7 IU/L

0-0.12 μkat/L

Lipase

10-150 units/L

10-150 units/L

Lipids

Total cholesterol

Desirable

< 200 mg/dL

< 5.2 mmol/L

Borderline-high

200-239 mg/dL

< 5.2-6.2 mmol/L

High

> 239 mg/dL

> 6.2 mmol/L

Low-density lipoprotein (LDL)

Desirable

< 130 mg/dL

< 3.36 mmol/L

Borderline-high

130-159 mg/dL

3.36-4.11 mmol/L

High

> 159 mg/dL

> 4.11 mmol/L

High-density lipoprotein (HDL)

Low

< 40 mg/dL

< 1.03 mmol/L

Desirable

> 60 mg/dL

≥ 1.55 mmol/L

Triglycerides

Desirable

< 150 mg/dL

< 1.7 mmol/L

Borderline-high

150-199 mg/dL

1.7-2.25 mmol/L

High

200-499 mg/dL

2.26-5.64 mmol/L

Very high

> 500 mg/dL

> 5.65 mmol/L

Liver function tests (LFTs)

Alanine aminotransferase (ALT, SGPT)

7-53 IU/L

0.12-0.88 mckat/L

Ammonia (NH4+)

15-45 μg/dL

11-32 μmol/L

Aspartate aminotransferase (AST, SGOT)

11-47 IU/L

0.18-0.78 mckat/L

Bilirubin (adults) (F)

Conjugated

≤ 0.2 mg/dL

≤ 4 mcmol/L

Total

0.1-1 mg/dL

2-18 mcmol/L

Lactate dehydrogenase (LDH)

100-250 IU/L

1.67-4.17 mckat/L

Magnesium

1.3-2.2 mEq/L

0.65-1.1 mmol/L

Phosphate

2.5-5 mg/dL

0.8-1.6 mmol/L

Prolactin

Males

0-15 ng/mL

0-15 mcg/L

Females

0-20 ng/mL

0-20 mcg/L

Protein, total

5.5-8 g/dL

55-80 g/L

Thyroid hormone function tests

Free thyroxine (Free T4)

0.8-2.7 ng/dL

10-35 pmol/L

Thyroid-stimulating hormone (TSH)

0.35-6.2 mcU/mL

0.35-6.2 mU/L

Thyroxine-binding globulin capacity

10-26 mcg/dL

100-260 mcg/L

Total triiodothyronine (T3)

60-181 ng/dL

0.92-2.78 nmol/L

Total thyroxine by RIA (T4)

4.5-10.9 mcg/dL

58-140 nmol/L

Uric acid

3-8 mg/dL

179-476 mcmol/L