Vital signs
Pulse 60 to 100 beats per minute
Blood pressure 90 to 140 mmHg (systolic)

60 to 90 mmHg (diastolic)

Respirations 12 to 20 breaths per minute
Pulse oximetry
Range Value
Normal 95 to 100%
Laboratory Reference Ranges in Healthy Adults The values listed below are generalizations.
Electrolytes
Ammonia: 15-50 �mol/L
Ceruloplasmin: 15-60 mg/dL
Chloride: 95-105 mmol/L
Copper: 70-150 �g/dL
Creatinine: 0.8-1.3 mg/dL
Blood urea nitrogen: 8-21 mg/dL
Ferritin: 12-300 ng/mL (men), 12-150 ng/mL (women)
Glucose: 65-110 mg/dL
Inorganic phosphorous: 1-1.5 mmol/L
Ionized calcium: 1.03-1.23 mmol/L
Magnesium: 1.5-2 mEq/L
Phosphate: 0.8-1.5 mmol/L
Potassium: 3.5-5 mmol/L
Pyruvate: 300-900 g/dL
Sodium: 135-145 mmol/L
Total calcium: 2-2.6 mmol/L
Total iron-binding capacity: 45-85 mol/L
Total serum iron: 65-180 g/dL (men), 30-170 g/dL (women)
Transferrin: 200-350 mg/dL
Urea: 1.2-3 mmol/L
Uric acid: 0.18-0.48 mmol/L
Zinc: 70-100 mol/L
Hematology
Hemoglobin: 13-17 g/dL (men), 12-15 g/dL (women)
Hematocrit 40%-52% (men), 36%-47% (women)
Glycosylated hemoglobin 4%-6%
Mean corpuscular volume (MCV): 80-100 fL
Red blood cell distribution width (RDW): 11.5%-14.5%
Mean corpuscular hemoglobin (MCH): 0.4-0.5 fmol/cell
Mean corpuscular hemoglobin concentration (MCHC): 30-35 g/dL
Reticulocytes: 0.5%-1.5%
White blood cells (WBC): 4-10 x 10^9/L
Neutrophils: 2-8 x 10^9/L
Lymphocytes: 1-4 x 10^9/L
Monocytes: 0.2-0.8 x 10^9/L
Eosinophils: < 0.5 x 10^9/L
Platelets: 150-400 x 10^9/L
Prothrombin time: 11-14 sec
International normalized ratio (INR): 0.9-1.2
Activated partial thromboplastin time (aPTT): 20-40 sec
Fibrinogen: 1.8-4 g/L
Bleeding time: 2-9 min
Lipids
Triglycerides: 50-150 mg/dL
Total cholesterol: 3-5.5 mmol/L
High-density lipoprotein (HDL): 40-80 mg/dL
Low-density lipoprotein (LDL): 85-125 mg/dL
Acid base
pH: 7.35-7.45
Base excess: (-3)-(+3)
H+: 36-44 nmol/L
Oxygen saturation: 96%-100%
Bicarbonate (HCO3): 18-22 mmol/L
Gastrointestinal function
Albumin: 35-50 g/L
Alkaline phosphatase: 50-100 U/L
Alanine aminotransferase (ALT): 5-30 U/L
Amylase: 30-125 U/L
Aspartate aminotransferase (AST): 5-30 U/L
Direct bilirubin: 0-6 �mol/L
Gamma glutamyl transferase: 6-50 U/L
Lipase: 10-150 U/L
Total bilirubin: 2-20 �mol/L
Total protein: 60-80 g/L
Cardiac enzymes
Creatine kinase: 25-200 U/L
Creatine kinase MB (CKMB): 0-4 ng/mL
Troponin: 0-0.4 ng/mL
Vitamins
Folate (serum) : 7-36 nmol/L
Vitamin A: 30-65 �g/dL
Vitamin B12: 130-700 ng/L
Vitamin C: 0.4-1.5 mg/dL
Vitamin D: 5-75 ng/mL
Tumor markers
Alpha fetoprotein: 0-44 ng/mL
Beta human chorionic gonadotropin (HCG): < 5 IU/I
CA19.9: < 40 U/mL
Carcinoembryonic antigen (CEA): < 4 ug/L
Prostatic acid phosphatase (PAP): 0-3 U/dL
Prostate-specific antigen (PSA): < 4 ug/L
Miscellaneous
Alpha 1-antitrypsin: 20-50 �mol/L
Angiotensin-converting enzyme: 23-57 U/L
C-reactive protein: < 5 mg/L
D-dimer: < 500 ng/mL
Erythrocyte sedimentation rate (ESR): Less than age/2 mm/hour
Lactate dehydrogenase (LDH): 50-150 U/L
Lead: < 40 �g/dL
Rheumatoid factor: < 25 IU/ml