Choledocholithiasis laboratory findings
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Choledocholithiasis Microchapters |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:
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Overview
The laboratory data may be normal in as many as a thirds of patients with choledocholithiasis, and further evaluation of the Common bile duct is recommended by imaging studies to clarify the diagnosis.
Laboratory Findings
The laboratory data may be normal in as many as a third of patients with choledocholithiasis, and further evaluation of the Common bile duct is recommended by imaging studies to clarify the diagnosis.
- Elevated serum bilirubin and alkaline phosphatase reflect biliary obstruction, but these are neither highly sensitive nor specific for CBD stones.
- High Gamma-glutamyl transferase (GGT) level, greater than 90 U/L, has been suggested to be the most sensitive and specific indicator of CBD stones indicate a high risk of choledocholithiasis.