All tests · Liver Function (LFTs) · Bilirubin, Total

Above the range

What causes a high Bilirubin, Total?

Normal range 0.3-1.2 mg/dL (5.1-20.5 µmol/L SI). Specimen: Serum. See the full Bilirubin, Total reference page for critical values and nursing considerations.

Above the range

Common causes of a high Bilirubin, Total

  • Hemolysis (indirect)
  • Liver disease
  • Biliary obstruction (direct)
  • Gilbert syndrome

What is the normal range for Bilirubin, Total?

The standard teaching reference range for Bilirubin, Total is 0.3-1.2 mg/dL in conventional units, or 5.1-20.5 µmol/L in SI units. This value is measured in serum.

Bilirubin, Total reference range and specimen details
SpecimenSerum
Conventional range0.3-1.2 mg/dL
SI range5.1-20.5 µmol/L
Critical value> 15 mg/dL in neonates (kernicterus risk)
PanelLiver Function (LFTs)

Full details, including nursing considerations, on the Bilirubin, Total normal range page. Reference ranges vary by laboratory, method, age, sex, and population - always use the range printed on the actual result.

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