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Reference Ranges for Common Lab Tests
| Bench | Parameter | Range (SI Units) |
|---|---|---|
| Electrolytes | Ammonia (NH4+) | 15-50 µmol/L |
| Ceruloplasmin: | 15-60 mg/dL | |
| Chloride (Cl-) | 95-105 mmol/L | |
| Copper (Cu2+) | 70-150 µg/dL | |
| Creatinine (Cr) | Female: 44-97umol/L Male: 53-106umol/L |
|
| Blood urea nitrogen (BUN) | 8-21 mg/dL | |
| Ferritin: | 12-300 ng/mL (men), 12-150 ng/mL (women) | |
| Inorganic phosphorous: | 1-1.5 mmol/L | |
| Ionized calcium (Ca2+) | 1.03-1.23 mmol/L | |
| Magnesium (Mg2+) | 1.5-2 mEq/L | |
| Phosphate (PO4-) | 0.8-1.5 mmol/L | |
| Potassium (K+) | 3.5-5 mmol/L | |
| Pyruvate: | 300-900 µg/dL | |
| Sodium (Na+) | 135-145 mmol/L | |
| Total calcium | 2-2.6 mmol/L (8.5-10.2 mg/dL) | |
| Total iron-binding capacity (TIBC) | 45-85 µmol/L | |
| Total serum iron | 65-180 µg/dL (men), 30-170 µg/dL (women | |
| Transferrin | 200-350 mg/dL | |
| Urea: | 1.2-3 mmol/L | |
| Uric acid: | 0.18-0.48 mmol/L | |
| Zinc: | 70-100 µmol/L | |
| Hematology | Hematology | |
| Hemoglobin: | 13-17 g/dL (men), 12-15 g/dL (women) | |
| Hematocrit | 40%-52% (men), 36%-47% | |
| Glycosylated hemoglobin (HBA1c) | 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 | |
| Bands: | < 1 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 | |
| Partial pressure of oxygen (pO2): | 75-100 mm Hg | |
| Oxygen saturation: | 96%-100% | |
| Partial pressure of carbon dioxide (pCO2): | 35-45 mm Hg | |
| 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 µmol/L | |
| Gamma glutamyl transferase: | 6-50 U/L | |
| Lipase: | 10-150 U/L | |
| Total bilirubin: | 2-20 µmol/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 | |
| Hormones | ||
| 17 hydroxyprogesterone (female, follicular): | 0.2-1 mg/L | |
| Adrenocorticotropic hormone (ACTH): | 4.5-20 pmol/L | |
| Estradiol: | 1.5-5 ng/dL (male), 2-14 ng/dL (female, follicular), 2-16 ng/dL (female, luteal), < 3.5 ng/dL (postmenopausal) | |
| Free T3: | 0.2-0.5 ng/dL | |
| Free T4: | 10-20 pmol/L | |
| Follicle-stimulating hormone (FSH): | 1-10 IU/L (male), 1-10 IU/L (female, follicular/luteal), 5-25 IU/L (female, ovulation), 30-110 IU/L (postmenopause) | |
| Growth hormone (fasting) : | 0-5 ng/mL | |
| Progesterone: | 70-280 (ovulation), ng/dL | |
| Prolactin: | < 14 ng/mL | |
| Testosterone (male): | 10-25 nmol/L | |
| Thyroxine-binding globulin: | 12-30 mg/L | |
| Thyroid-stimulating hormone (TSH): | 0.5-5 mIU/L | |
| Total T4, | adult: 4.9-11.7 mg/dL | |
| Total T3: | 0.7-1.5 ng/dL | |
| Free T3: | 1.7-3.7 pg/mL | |
| Vitamins | ||
| Folate (serum) : | 7-36 nmol/L | |
| Vitamin A: | 30-65 µg/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 µmol/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 µg/dL | |
| Rheumatoid factor: | < 25 IU/ml |