Clinical Chemistry SI Conversion Factors
Measure | Conventional (US) Units | Conversion Factor (×) | SI Units |
|---|---|---|---|
Alkaline phosphatase | IU/L | 1.0 | U/L |
ALT | U/L | 1.0 | U/L |
Albumin | g/dL | 10.0 | g/L |
Ammonia (NH4) | mcg/dL | 0.5872 | mcmol/L |
Amylase | Somogyi units | 1.85 | U/L |
AST | U/L | 1.0 | U/L |
Bilirubin | mg/dL | 17.10 | mcmol/L |
Calcium | mg/dL | 0.25 | mmol/L |
Bicarbonate (HCO3) | mEq/L | 1.0 | mmol/L |
Carbon dioxide | mEq/L | 1.0 | mmol/L |
Chloride | mEq/L | 1.0 | mmol/L |
Cholesterol | mg/dL | 0.026 | mmol/L |
Copper | mcg/dL | 0.16 | mcmol/L |
Cortisol | mcg/dL | 27.6 | nmol/L |
CK | IU/L | 1.0 | U/L |
Creatinine | mg/dL | 88.40 | mcmol/L |
Fibrinogen | mg/dL | 0.01 | g/L |
Glucose | mg/dL | 0.055 | mmol/L |
Iron, binding | mcg/dL | 0.179 | mcmol/L |
Iron, total | mcg/dL | 0.179 | mcmol/L |
Lipase | IU/L | 1 | U/L |
Cherry-Crandall U | 278 | U/L | |
Magnesium | mEq/L | 0.5 | mmol/L |
Osmolality | Osm/kg | 1.0 | mmol/L |
Phosphorus | mg/dL | 0.323 | mmol/L |
Potassium | mEq/L | 1.0 | mmol/L |
Protein, total | g/dL | 10.0 | g/L |
Sodium | mEq/L | 1.0 | mmol/L |
Triglycerides | mg/dL | 0.011 | mmol/L |
Triiodothyronine (T3) | mcg/dL | 15.6 | nmol/L |
Thyroxine (T4) | mcg/dL | 12.87 | nmol/L |
Urea nitrogen | mg/dL | 0.357 | mmol/L |
Uric acid | mg/dL | 0.059 | mmol/L |
Urine protein/creatinine ratio | g/g | 0.113 | g/mmol |
Xylose absorption | mg/dL | 0.067 | mmol/L |
Adapted from Veterinary Laboratory Medicine: Interpretation and Diagnosis, Meyer DH, Harvey JW, 3rd ed., Copyright 2004, with permission from Elsevier. | |||