Direct (conjugated) bilirubin measures the portion of bilirubin that has been processed by the liver and made water-soluble for excretion.
Category: Liver Function
Also known as: direct bilirubin, conjugated bilirubin, dbil, d. bilirubin
Reference range: 0–0.3 mg/dL (Source: ABIM)
Standard unit: mg/dL
High values may indicate
High direct bilirubin may indicate bile duct obstruction, gallstones, liver diseases such as hepatitis or cirrhosis, or Dubin-Johnson syndrome.
Low values may indicate
Low direct bilirubin is generally not a clinical concern and is usually considered normal.
Source: MedlinePlus, U.S. National Library of Medicine
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