Normal Lab Values

IMPORTANT NOTES NORMAL LABORATORY VALUES TERMINOLOGY IMPORTANT NOTES: Each commercial laboratory has its own set of “normal” values, called “Normal Range” or “Reference Range” on your lab report. These values depend on the equipment or method used. Compare your results to the range shown on your lab report. Results that are “out of range” may not represent a problem. Your test results can be affected by several factors, including your age or gender, if you are pregnant, the time of day when the sample was taken, active infectons, stage of HIV disease, and food (some test samples need to be taken after you have fasted - not eaten anything - for several hours). Where normal values for men and women are different, they are indicated as W for women and M for men. Discuss “out of range” results with your health care provider. The table below compares the units used in the United States with the "Système International d'Unités (SI units), a metric system used in many parts of the world. The last column, "To Convert US to SI Units," is the factor to multiply US lab values to convert them to SI units. To convert SI units to US units, divide the SI value by the conversion factor. See page 2 for a terminology list. NORMAL LABORATORY VALUES Laboratory Test Normal Range in US Units Normal Range in SI Units To Convert US to SI Units ALT (Alanine aminotransferase) W 7-30 units/liter M 10-55 units/liter W 0.12-0.50 µkat/liter M 0.17-0.92 µkat/liter x 0.01667 Albumin 3.1 - 4.3 g/dl 31 - 43 g/liter x 10 Alkaline Phosphatase W 30-100 units/liter M 45-115 units/liter W 0.5-1.67 µkat/liter W 0.75-1.92 µkat/liter x 0.01667 Amylase (serum) 53-123 units/liter 0.88-2.05 nkat/liter x 0.01667 AST (Aspartate aminotransferase) W 9-25 units/liter M 10-40 units/liter W 0.15-0.42 µkat/liter M 0.17-0.67 µkat/liter x 0.01667 Basophils 0-3% of lymphocytes 0.0-0.3 fraction of white blood cells x 0.01 Bilirubin - Direct 0.0-0.4 mg/dl 0-7 µmol/liter x 17.1 Bilirubin - Total 0.0-1.0 mg/dl 0-17 µmol/liter x 17.1 Blood pressure Normal: 120/70 to 120/80 millimeters of mercury (mmHg). The top number is systolic pressure, when the heart is pumping. Bottom number is diastolic pressure then the heart is at rest. Blood pressure can be too low (hypotension) or too high (hypertension). No conversion C peptide 0.5-2.0 ng/ml 0.17-0.66 nmol/liter x 0.33 Calcium, serum 8.5 -10.5 mg/dl 2.1-2.6 mmol/liter x 0.25 Calcium, urine 0-300 mg/24h 0.0-7.5 mmol/24h x 0.025 Cholesterol, total Desirable Marginal High 239 mg/dL 6.18 mmol/liter x 0.02586 Cholesterol, LDL Desirable Marginal High Very High 190 mg/dL 4.91 mmol/liter x 0.02586 Cholesterol, HDL Desirable Moderate Low (heart risk) >60 mg/dL 40-60 mg/dL >1.55 mmol/liter 1.03-1.55 mmol/liter x 0.02586 Cortisol: serum 0-25 µg/dl (depends on time of day) 0-690 nmol/liter x 27.59 Cortisol: free (urine) 20-70 µg/dl 55-193 nmol/24h x 2.759 Creatine kinase W 40-150 units/liter M 60-400 units/liter W 0.67-2.50 µkat/liter M 1.00-6.67 µkat/liter x 0.01667 DHEA W 130-980 ng/dl M 180-1250 ng/dl W 4.5-34.0 nmol/liter M 6.24-43.3 nmol/liter x 0.03467 DHEA Sulfate W Pre-menopause: 12-535 µg/dl W Post-menopause: 30-260 µg/dl M 10-619 µg/dl W Pre-menopause: 120-5350 µg/liter W Post-menopause: 300-2600 µg/liter M 100-6190 µg/liter x 10 Eosinophils 0-8% of white blood cells 0.0-0.8 fraction of white blood cells x 0.01 Erythrocyte sedimentation rate (Sed Rate) W<=30 mm/h M<=20 mm/h W<=30 mm/h M<=20 mm/h No conversion Folate 3.1-17.5 ng/ml 7.0-39.7 nmol/liter x 2.266 Glucose, urine <0.05 g/dl <0.003 mmol/litro x 0.05551 Glucose, plasma 70-110 mg/dl 3.9-6.1 mmol/liter x 0.05551 GGT (Gamma glutamyl transferase) W <=45U/L M <=65 U/L W <=45U/L M <=65 U/L No conversion Hematocrit W 36.0% - 46.0% of red blood cells M 37.0% - 49.0% of red blood cells W 0.36-0.46 fraction of red blood cells M 0.37-0.49 fraction of red blood cells x 0.01 Hemoglobin W 12.0-16.0 g/dl M 13.0-18.0 g/dl W 7.4-9.9 mmol/liter M 8.1-11.2 mmol/liter x 0.6206 LDH (Lactate dehydrogenase) (total) <=270 U/L <=4.5 µkat/liter x 0.016667 Lactic acid 0.5-2.2 mmol/liter 0.5-2.2 mmol/liter No conversion Leukocytes (WBC) 4.5-11.0x103/mm3 4.5-11.0x109/liter No conversion Lymphocytes 16%-46% of white blood cells 0.16-0.46 fraction of white blood cells x 0.01 Mean corpuscular hemoglobin (MCH) 25.0-35.0 pg/cell 25.0-35.0 pg/cell No conversion Mean corpuscular hemoglobin concentration (MCHC) 31.0-37.0 g/dl 310-370 g/liter x 10 MCV (Mean corpuscular volume) W 78-102 µm3 M 78-100 µm3 W 78-102 fl M 78-100 fl No conversion Monocytes 4-11% of white blood cells 0.04-0.11 fraction of white blood cells x 0.01 Neutrophils 45%-75% of white blood cells 0.45-0.75 fraction of white blood cells x 0.01 Phosphorus 2.5 – 4.5 mg/dL 0.81-1.45 mmol/L x 0.323 Platelets (Thrombocytes) 130 – 400 x 10 3µL 130 – 400 x 10 9L No conversion Potassium 3.4-5.0 mmol/liter 3.4-5.0 mmol/liter No conversion RBC (Red blood cell count) W 3.9 – 5.2 x 106/µL3 M 4.4 – 5.8 x 10 6/µL3 W 3.9 – 5.2 x 1012/L M 4.4 – 5.8 x 10 12/L No conversion Sodium 135-145 mmol/liter 135-145 mmol/liter No conversion Testosterone, total (morning sample) W 6-86 ng/dl M 270-1070 ng/dl W 0.21-2.98 nmol/liter M 9.36-37.10 nmol/liter x 0.03467 Testosterone, free Age 20-40 Age 41-60 Age 61-80 W 0.6-3.1, M 15.0-40.0 pg/ml W 0.4-2.5, M 13.0-35.0 pg/ml W 0.2-2.0, M 12.0-28.0 pg/ml W 20.8-107.5, M 520-1387 pmol/liter W 13.9-86.7, M 451-1213 pmol/liter W 6.9-69.3, M 416-971 pmol/liter x 34.67 Triglicerides (fasting) Normal Borderline High Very high 40-150 mg/dl 150-200 mg/dl 200-500 mg/dl >500 mg/dl 0.45-1.69 mmol/liter 1.69-2.26 mmol/liter 2.26-5.65 mmol/liter >5.65 mmol/liter x 0.01129 Urea, plasma (BUN) 8-25 mg/dl 2.9-8.9 mmol/liter x 0.357 Urinalysis - pH Specific gravity 5.0-9.0 1.001-1.035 5.0-9.0 1.001-1.035 No conversion WBC (White blood cells, leukocytes) 4.5-11.0x10 3 /mm 3 4.5-11.0x10 9 liter No conversion TERMINOLOGY: UNITS: gram : common measurement of weight. Used in this table: pg (picograms), g (grams), mg (milligrams), etc. per liter katal (kat) : a unit of catalytic activity, used especially in the chemistry of enzymes. Used in this table: µkat (microkatals), nkat (nanokatals) per liter micrometer (µm) : a unit of length. Mean Corpuscular Volume is expressed in cubic micrometers mole : also “gram molecular weight,” a quantity based on the atomic weight of the substance. Many test results in the Système Internationale are expressed as the number of moles per liter. In US units, these measurements are usually in grams per liter. Used in this table: mmol (millimoles), µmol, (micromoles), nmol (nanomoles), pmol (picomoles) per liter Some units of measurement include the following fractions and multipliers: mega (M) : 10 6 or x1,000,000 kilo (k) : 10 3 or x1,000 deca or deka : 10 1 or x10 deci (d) : 10 -1 or ÷10 milli (m) : 10 -3 or ÷1,000 micro (µ) : 10 -6 or ÷1,000,000 nano (n) : 10 -9 or ÷1,000,000,000 pico (p) : 10 -12 or ÷1,000,000,000,000