Which condition is associated with an increase in ALT?

Study liver anatomy and function with our medical students test. Engage with detailed multiple choice questions, each with hints and explanations. Prepare effectively for your test!

ALT is a liver-specific enzyme that rises when liver cells are damaged. When hepatocytes are injured, their membranes leak ALT into the bloodstream, making it a reliable marker of hepatocellular injury. Dehydration mainly affects fluid balance and perfusion but doesn’t specifically injure liver cells in a way that produces a prominent ALT rise. Pancreatitis raises pancreatic enzymes and may cause some nonspecific transaminase elevation, but the hallmark signal for liver cell injury is an increase in ALT. Pulmonary disease does not target liver cells, so it doesn’t cause a meaningful ALT rise. Thus, hepatocellular pathology best explains an increased ALT because it directly reflects hepatocyte injury and leakage of this liver enzyme into the blood.