LDH Isoenzymes, Serum: LDH, or lactate dehydrogenase, is an enzyme found in many tissues, including the heart, liver, muscles, and red blood cells. Measuring LDH isoenzymes helps show which specific tissues may be affected when LDH levels are elevated. Normal levels indicate healthy tissue function. Elevated LDH isoenzymes can suggest tissue damage or stress in specific organs, such as the heart, liver, or muscles.
– Synonyms: Lactic Dehydrogenase