Serum chemistry results on a 53-year-old female are:
AST: 120 U/L (4-34 U/L)
ALT: 185 U/L (5-40 U/L)
ALP: 785 U/L (<165 U/L)
γGT: 225 U/L (5-24 U/L)
Total bilirubin: 10.8 mg/dL
Direct bilirubin: 8.6 mg/dL
urine bilirubin: positive
urine urobilinogen: Normal
fecal urobilinogen: decreased
These results are consisten with a diagnosis of?
A) Biliary obstruction
B) Hepatitis
C) Hemolytic anemia
D) Dubin-Johnson
Answer: Biliary obstruction