Normal Laboratory Values

Normal laboratory values for adults

Complete blood cell count (CBC)
Red blood cell count (RBC) (per mm³)
Men	4.1 x 106 - 5.9 x 106
Women	3.8 x 106 - 5.5 x 106
Hemoglobin (Hgb) (g/dL)
Men	13.0-18.0
Women	12.0-16.0
Hematocrit (Hct) (%)
Men	41-53
Women	34-46
Mean corpuscular volume (MCV) (fL)	81-99
Mean corpuscular hemoglobin (MCH) (pg)	30-34
Mean corpuscular hemoglobin concentration (MCHC) (%)	30-36
White blood cell count (WBC) (per mm³)	4,100-11,300
Cell differentiation (Diff)
Segmented neutrophils	2,500-6,000 (40%-60%)
Band neutrophils	0-500 (0%-5%)
Lymphocytes	1,000-4,000 (15%-46%)
Monocytes	200-800 (3%-13%)
Eosinophils	50-300 (0%-2.5%)
Basophils	0-100 (0%-2.5%)
Platelet count (Plt) (per mm³)	140,000-450,000
Reticulocyte count (Rct) (%)	1%-2%

Coagulation tests
Bleeding time (BT) (min)	3-9
International normalized ratio (INR)	0.9-1.2
Prothrombin time (PT) (sec)	11-13
Activated partial thromboplastin time (aPTT) (sec)	25-37

Proteins
Total serum protein (g/dL)	6.0-8.4
Albumin, serum	3.5-5.0
Globulin, serum	2.3-3.5
Albumin/globulin ratio	1.5:3.1

Enzymes
Amylase (U/mL)	60-180
Creatine phosphokinase (CPK) (mU/mL)
Men	25-90
Women	10-70
Lactate dehydrogenase (LDH) (IU/L)	100-190
Phosphatase (IU/L)	30-120
Transaminases
Aspartate transaminase (AST, SGOT) (IU/L)	0-35
Alanine transaminase (ALT, SGPT) (IU/L)	0-35

Blood gases
Oxygen saturation (O2 sat) (%)	96-100
PO2 (mm Hg)	75-100
PCO2 (mm Hg)	35-45
pH	7.35-7.45

Miscellaneous
Bilirubin (mg/dL)
Total	0.3-1.0
Direct	0.1-0.3
Indirect	0.2-0.7
Blood urea nitrogen (BUN) (mg/dL)	10-20
Calcium (mg/dL)	9.0-10.5
Creatinine (Cr) (mg/dL)
Men	0.5-1.3
Women	0.4-1.2
Glucose (fasting) (mg/dL)	75-115
Hemoglobin A1C (A1C) (%)	<6.0
Iron (ug/dL)	50-150
Iron-binding capacity (ug/dL)	250-370
Saturation (%)	20-45
Uric acid (mg/dL)
Men	2.5-8.0
Women	1.5-6.0

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Related Pages

• Laboratory Values
  • Laboratory Values for Different Bleeding Disorders