CAMLPR Chemistry Practice Test

Alcohol use nudges the liver to increase certain enzyme levels, and among common liver enzymes, gamma-glutamyl transferase is the one that most reliably rises with regular alcohol consumption. This enzyme is induced in the liver by alcohol, so its level often becomes elevated even when there isn’t clear hepatocyte injury yet. That makes it a sensitive marker for detecting alcohol use.

In contrast, amylase points to pancreatic or salivary gland issues and isn’t linked to drinking. Alkaline phosphatase can be elevated for bone disorders or cholestasis and isn’t specifically tied to alcohol exposure. Alanine aminotransferase signals hepatocellular injury, but it isn’t as consistently elevated by alcohol alone as GGT; it rises with liver damage, not just alcohol use.

So the most sensitive indicator for indicating alcohol use among these options is gamma-glutamyl transferase, with the caveat that it isn’t perfectly specific and can be influenced by other factors.