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Normal Laboratory Values

Normal laboratory values for adults#

Complete blood cell count (CBC)
Red blood cell count (RBC) (per mm³)
Men4.1 x 106 - 5.9 x 106
Women3.8 x 106 - 5.5 x 106
Hemoglobin (Hgb) (g/dL)
Men13.0-18.0
Women12.0-16.0
Hematocrit (Hct) (%)
Men41-53
Women34-46
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 neutrophils2,500-6,000 (40%-60%)
Band neutrophils0-500 (0%-5%)
Lymphocytes1,000-4,000 (15%-46%)
Monocytes200-800 (3%-13%)
Eosinophils50-300 (0%-2.5%)
Basophils0-100 (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, serum3.5-5.0
Globulin, serum2.3-3.5
Albumin/globulin ratio1.5:3.1
Enzymes
Amylase (U/mL)60-180
Creatine phosphokinase (CPK) (mU/mL)
Men25-90
Women10-70
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
pH7.35-7.45
Miscellaneous
Bilirubin (mg/dL)
Total0.3-1.0
Direct0.1-0.3
Indirect0.2-0.7
Blood urea nitrogen (BUN) (mg/dL)10-20
Calcium (mg/dL)9.0-10.5
Creatinine (Cr) (mg/dL)
Men0.5-1.3
Women0.4-1.2
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)
Men2.5-8.0
Women1.5-6.0