Serum lactate dehydrogenase (LDH) is a prognostic and diagnostic marker used to measure tissue breakdown. It is present in numerous disease outcomes, including infections, sepsis and cancerous conditions. The phenotype is elevated lactate dehydrogenase (EFO_0010695). Also known as: Increased lactic acid dehydrogenase, elevated LDH, elevated lactic acid dehydrogenase, increase of LDH, increased LDH.