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LDH
Alternate Names : Lactate Dehydrogenase, Lactic Acid Dehydrogenase
DefinitionThis is a blood test that measures the amount of lactate dehydrogenase (LDH). See also LDH isoenzymes.
Why is the Test Performed?
LDH is most often measured to evaluate the presence of tissue damage. The enzyme LDH is in many body tissues, especially the heart, liver, kidney, skeletal muscle, brain, blood cells, and lungs.
LDH catalyzes the interconversion of pyruvate and lactate. Exercising muscles convert (and red blood cells metabolize) glucose to lactate. Lactate is released into the blood and is eventually taken up by the liver. The liver converts lactate back to glucose and releases glucose into the blood. This glucose is then taken up by resting muscles, red blood cells, and other tissues.
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Jump to another section
• Definition
• Why is the Test Performed?
• How is the Test Performed?
• How to Prepare for the Test?
• Normal Values
• What do Abnormal Results Mean?
Topics that might be of interest to you Diseases & Conditions
• Anemia - B12 Deficiency
• Heart Attack
• Hemolytic Anemia
• Hepatitis
• Liver Disease
• Megaloblastic Anemia
• Mononucleosis
• Muscular Dystrophy
• Pancreatitis
• Pernicious Anemia
• Stroke
Tests & Exams
• Lactic Acid
• LDH Isoenzymes
Other Topics
• Blood Pressure - Low
• Enzyme
• Metabolize
Review Date : 9/14/2003
Reviewed By : Corey Cutler, M.D., M.P.H., F.R.C.P.C., Department of Medical Oncology, Dana-Farber Cancer Institute; Instructor in Medicine, Harvard University, Boston, MA. Review provided by VeriMed Healthcare Network.
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