Diagnostics & Medical Tests
Understanding Lactate Dehydrogenase (LDH) in Critical Illness
Lactate dehydrogenase (LDH) is an enzyme found in nearly every cell, and elevated levels often signal that cells somewhere in the body are being damaged or turned over quickly. This guide explains what LDH measures, why it rises in critically ill patients, how clinicians interpret it alongside other tests, and what questions families can ask the care team.
