A patient has come to the clinic with vague complaints that made the physician suspect liver disease. Laboratory work shows elevated GGT levels. What can elevated GGT levels indicate?
A) Hemolytic jaundice
B) Cirrohsis
C) Liver cell dysfunction
D) Viral hepatitis
Ans: C
Feedback: Increased GGT levels are associated with cholestasis but can also be due to alcoholic liver disease. Although the kidney has the highest level of the enzyme, the liver is considered the source of normal serum activity. The test determines liver cell dysfunction and is a sensitive indicator of cholestasis. An elevated GGT would not indicate hemolytic jaundice, cirrohsis, or viral hepatitis.
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