Quick Review Cards for Medical Laboratory Science

Comparison of Conventional and SI Units

for Selected Reference Ranges

Clinical Chemistry Review 68

ANALYTE CONVENTIONAL UNITS SI UNITS

Bilirubin, total 0.2–1 mg/dL 3.4–17.1 μmol/L

BUN 6–20 mg/dL 2.1–7.1 mmol/L

Calcium, total 8.6–10 mg/dL 2.15–2.5 mmol/L

Chloride 98–107 mEq/L 98–107 mmol/L

Creatinine M: 0.9–1.2 mg/dL, F: 0.6–1.1 mg/dL M: 80–106 mmol/L, F: 53–97 mmol/L

Glucose, fasting 70–99 mg/dL 3.9–5.5 mmol/L

Potassium 3.5–5.1 mEq/L 3.5–5.1 mmol/L

Sodium 136–145 mEq/L 136–145 mmol/L

Total protein 6.4–8.3 g/dL 64–83 g/L

Uric acid M: 3.5–7.2 mg/dL, F: 2.6–6 mg/dL M: 208–428 μmol/L, F: 155–357 μmol/L

SI = Système International d’Unités (international system of units).

2956_Ch02_067-134 27/02/14 10:52 AM Page 68