Question: are liver enzymes elevated in mono?
Answer: Liver function tests Most (ie, 80-100%) patients with acute infectious mononucleosis have elevated liver function test results. Alkaline phosphatase, aspartate aminotransferase (AST), and bilirubin levels peak 5-14 days after onset, and gamma-glutamyltransferase (GGT) levels peak at 1-3 weeks after onset.