LDH

Lactate Dehydrogenase (LDH) is an enzyme found in almost all body tissues, involved in energy production. Elevated serum LDH is a non-specific indicator of tissue damage somewhere in the body, such as from liver disease, heart attack, hemolysis (RBC breakdown), muscle injury, kidney disease, or certain cancers (used as tumor marker sometimes). Isoenzyme testing can sometimes help pinpoint the source of the elevation.