Increase in only unconjugated bilirubin occurs in which condition?

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Multiple Choice

Increase in only unconjugated bilirubin occurs in which condition?

Unconjugated bilirubin rises when production outpaces the liver’s capacity to conjugate it. In hemolytic anemia, there is increased breakdown of red blood cells, producing more bilirubin in the unconjugated form. The liver can usually handle the extra load by conjugating bilirubin, so the direct (conjugated) fraction remains normal or only mildly elevated. This creates a pattern where only unconjugated bilirubin is increased. In contrast, obstructive jaundice blocks bile excretion, causing a buildup of conjugated bilirubin in the blood. Hepatitis or hepatic cirrhosis impair the liver’s ability to conjugate and excrete bilirubin, often elevating both conjugated and unconjugated fractions rather than just the unconjugated form.

Unconjugated bilirubin rises when production outpaces the liver’s capacity to conjugate it. In hemolytic anemia, there is increased breakdown of red blood cells, producing more bilirubin in the unconjugated form. The liver can usually handle the extra load by conjugating bilirubin, so the direct (conjugated) fraction remains normal or only mildly elevated. This creates a pattern where only unconjugated bilirubin is increased.

In contrast, obstructive jaundice blocks bile excretion, causing a buildup of conjugated bilirubin in the blood. Hepatitis or hepatic cirrhosis impair the liver’s ability to conjugate and excrete bilirubin, often elevating both conjugated and unconjugated fractions rather than just the unconjugated form.

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