Question 4 of 13

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A patient with blockage of hepatic biliary network.

A. Increased "Indirect" bilirubin in patient's blood
B. Increased "Direct" bilirubin in patient's blood

A. A only

B. B only

C. Both A and B

D. Neither A or B

The correct answer is (B).

Comments:

In this situation bilirubin becomes conjugated, but secretion of the conjugated (direct) bilirubin is blocked, so it accumulates in the blood. Conjugated bilirubin is referred to as direct bilirubin because, due to its water solubility, it reacts directly in the van den Bergh test for bilirubin.

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Last modified 1/5/95