The values listed below are generalizations. Each laboratory has specific reference ranges. [, , , , , ]

Normal ranges for electrolytes include the following [, , ] :

Ammonia: 10-80 mcg/dL or 6-47 μmol/L

Ceruloplasmin: 23-50 mg/dL or 230-500 mg/L

Chloride: 98-106 mEq/L or 98-106 mmol/L

Copper: 100-200 μg/dL, in urine: 0-100 μg/24 h

Creatinine: 0.8-1.3 mg/dL; males: 0.6-1.2 mg/dL or 53-106 μmol/L; females: 0.5-1.1 mg/dL or 44-97 μmol/L

Blood urea nitrogen: 10-20 mg/dL or 3.6-7.1 mmol/L

Ferritin: Females: 10-150 ng/mL or 10-150 mcg/L; males: 12-300 ng/mL or 12-300 mcg/L

Glucose: 74-106 mg/dL

Inorganic phosphorous: 3-4.5 mg/dL or 0.97-1.45 mmol/L (SI units)

Ionized calcium: 4.5-5.6 mg/dL or 1.05-1.3 mmol/L

Magnesium: 1.3-2.1 mEq/L or 0.65-1.05 mmol/L

Phosphate: 3-4.5 mg/dL or 0.97-1.45 mmol/L

Potassium: 3.5-5.0 mEq/L or 3.5-5 mmol/L

Pyruvate: 0.08-0.16 mmol/L []

Sodium: 136-145 mEq/L or 136-145 mmol/L

Total calcium: 2-2.6 mmol/L (9-10.5 mg/dL) or 2.25-2.62 mmol/L

Total iron-binding capacity: 250-310 μg/dL

Total serum iron: 50-150 μg/dL

Transferrin: 215-365 mg/dL or 2.15-3.65 g/L

Urea: 1.2-3 mmol/L

Uric acid: Blood: Males: 4-8.5 mg/dL or 0.24-0.51 mmol/L; females: 2.7-7.3 mg/dL or 0.16-0.43 mmol/L. Urine: 250-750 mg/24 h or 1.48-4.43 mmol/day

Zinc: 75-140 μg/dL

Normal ranges for hematology values include the following [, , , ] :

Hemoglobin: Females: 12-16 g/dL or 7.4-9.9 mmol/L; males: 14-18 g/dL or 8.7-11.2 mmol/L

Hematocrit: Females: 37-47%, volume fraction: 0.37-0.47; males: 42-50%, volume fraction: 0.42-0.52

Glycosylated hemoglobin: 4.0-5.9% 

Mean corpuscular volume: 80-95 fL 

Red blood cell distribution width: 11-14.5%

Mean corpuscular hemoglobin: 27-31 pg

Mean corpuscular hemoglobin concentration: 32-36 g/dL or 32-36%

Reticulocytes:0.5-2% of red cells

White blood cells: 5000-10,000/mm3 or 5-10 × 109/L

Neutrophils: 2500-8000/mm3 or 55-70%

Bands: < 1 × 109/L

Lymphocytes: 1000-4000/mm3 or 20-40%

Monocytes: 100-700/mm3 or 2-8%

Eosinophils: 50-500/mm3 or 1-4%

Platelets: 150,000-400,000/mm3 (150-400 × 109/L)

Prothrombin time: 11-12.5 s

International normalized ratio: 0.8-1.1

Activated partial thromboplastin time: 30-40 s

Fibrinogen: 200-400 mg/dL or 2-4 g/L

Bleeding time: ˂ 9 min

Normal ranges for lipids include the following [] :

Triglycerides: Males: 40-160 mg/dL or 0.45-1.81 mmol/L; females: 35-135 mg/dL or 0.40-1.52 mmol/L

Total cholesterol: < 200 mg/dL or < 5.2 mmol/L

High-density lipoprotein: Females: > 55 mg/dL or > 0.91 mmol/L; males: > 45 mg/dL or > 0.75 mmol/L

Low-density lipoprotein: < 130 mg/dL

Normal acid-base ranges include the following [] :

pH: 7.35-7.45

Base excess: 0 ± 2 mEq/L

H+: 36-44 nmol/L

Partial pressure of oxygen (pO2): 80-100 mm Hg

Oxygen saturation: ≥ 95%

Partial pressure of carbon dioxide (pCO2): 35-45 mm Hg

Bicarbonate(HCO3): 21-28 mEq/L

Normal gastrointestinal function ranges include the following [] :

Albumin: 3.5-5.5 g/dL

Alkaline phosphatase: 30-120 U/L

Alanine aminotransferase: 4-36 U/L

Amylase: 60-120 Somogyi units/dL or 30-220 units/L

Aspartate aminotransferase: 0-35 U/L

Direct bilirubin: 0.1-0.3 mg/dL or 1.7-5.1 μmol/L

γ glutamyl transferase: Males and females aged 45 years and older: 8-38 units/L or 8-38 international units/L. Females younger than 45 years: 5-27 units/L or 5-27 international units/L

Lipase: 0-160 units/L

Total bilirubin: 0.3-1.0 mg/dL or 5.1-17 μmol/L

Total protein: 6.4-8.3 g/dL

Normal cardiac enzyme ranges include the following [] :

Creatine kinase: 20-200 U/L

Creatine kinase MB (CKMB): ˂ 5% of total CK levels

Cardiac Troponin: Cardiac troponin T: < 0.1 ng/mL

Cardiac troponin I: < 0.03 ng/mL

hsTnT: Males: < 22 ng/L; females: < 14ng/L

Normal hormone ranges include the following [, ] :

17-hydroxyprogesterone (female, follicular): ˂ 80 ng/dL

Adrenocorticotropic hormone: Males aged 19 years and older: 7-69 pg/mL; females aged 19 years and older: 6-58 pg/mL

Estradiol: Adult males: 10-50 pg/mL; adult females, follicular phase: 20-350 pg/mL, midcycle peak: 150-750 pg/mL, luteal phase: 30-450 pg/mL, postmenopause: ≤ 20 pg/mL

Free T3: 2.3-4.2 pg/mL []

Free T4: 0.8-1.8 ng/dL []

Follicle-stimulating hormone: Males: 1.42-15.4 IU/L; females, follicular phase: 1.37-9.9 IU/L, ovulatory peak: 6.17-17.2 IU/L, luteal phase: 1.09-9.2 IU/L, postmenopause: 19.3-100.6 IU/L

Growth hormone (fasting): Males: < 5 ng/mL (mcg/L [SI units]); females: < 10 ng/mL (mcg/L [SI units])

Progesterone: Adult males: 10-50 ng/dL; adult females, follicular phase: < 50 ng/dL, luteal: 300-2500 ng/dL, postmenopausal: < 40 ng/dL. In pregnancy, first trimester: 725-4400 ng/dL, second trimester: 1950-8250 ng/dL, third trimester: 6500-22,900 ng/dL

Prolactin: Adult males: 3-13 ng/mL; adult females: 3-27 ng/mL; pregnant females: 20-400 ng/mL

Testosterone: Males, 291-1100 ng/dL; females: 18-54 ng/dL

Thyroxine-binding globulin: 12-27 µg/mL 

Thyroid-stimulating hormone: 0.5-4.0 μU/mL (0.5-4.0 mU/L)

Total T4: Adult males: 4-12 mcg/dL or 59-135 nmol/L; adult females: 5-12 mcg/dL or 71-142 nmol/L

Total T3: 80-180 ng/dL 

Normal vitamin ranges include the following [] :

Folate (serum): 5-25 ng/mL or 11-57 nmol/L

Vitamin A: 32.5-78.0 μg/dL 

Vitamin B12: 200-800 pg/mL 

Vitamin C: 0.4-1.5 mg/dL 

Vitamin D: 1,25-Dihydroxyvitamin D: 15-60 pg/mL; 25-Hydroxyvitamin D: 30-60 ng/mL []

Vitamin E

Serum: 5-20 mcg/mL (11.6-46.4 μmol/L)

Plasma: 5.7-19.9 mg/L (11.4-39.8 μmol/L) 

Vitamin K: 0.2-1.0 ng/ml

Normal tumor marker ranges include the following [] :

α fetoprotein: Adults: < 40 ng/mL or < 40 mcg/L; β human chorionic gonadotropin: females, premenopausal nonpregnant: ˂ 1.0 U/L, postmenopausal: ˂ 7.0 U/L; males: ˂ 1.4 U/L 

CA19.9: 0-37 U/mL 

Carcinoembryonic antigen: ˂ 2.5 ng/mL 

Prostatic acid phosphatase: 0-3 U/dL

Prostate-specific antigen: 0-2.5 ng/mL 

Additional normal ranges include the following [, ] :

α 1-antitrypsin: 85-213 mg/dL or 0.85-2.13 g/L

Angiotensin-converting enzyme: 8-53 U/L 

C-reactive protein: 1.0 mg/dL or < 10 mg/L 

D-dimer: 500 µg/L or < 0.5 mg/L Fibrinogen Equivalent Units

Erythrocyte sedimentation rate: Males: < 15 mm/h; females: ≤ 20 mm/h

Lactate dehydrogenase: 100-190 units/L at 37° C (lactate - pyruvate) or 100-190 units/L

Lead: < 10 µg/dL 

Rheumatoid factor: Negative (< 60 units/mL by nephelometric testing)