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Description

The clinical test for lactate dehydrogenase isoenzyme-5 (LDH-5) is a laboratory test used to measure the amount of LDH-5 in a patient's serum. LDH-5 is an enzyme found in the heart, liver, and skeletal muscle and is used to diagnose certain types of heart and liver diseases.

To obtain a sample of serum for the LDH-5 test, a healthcare provider will draw a sample of blood from the patient's arm. The sample is then sent to a laboratory for analysis. In the laboratory, the sample is centrifuged to separate the serum from the other components of the blood. The serum is then tested for the presence of LDH-5 using an enzyme-linked immunosorbent assay (ELISA) or a spectrophotometric assay. The results of the test are then reported to the healthcare provider.

Synonyms

• lactic acid dehydrogenase isoenzyme-5
• LD5
• LDH5

Other Sample Sources for This Test

• cerebrospinal fluid
• plasma
• pleural fluid
• red blood cells
• urine

Some Diseases Associated with an Abnormal Lactate Dehydrogenase Isoenzyme-5

• injury
• normal pregnancy
• asthma
• acute myocardial infarction
• infectious mononucleosis
• anemia
• acute pancreatitis
• pneumonia
• congestive heart failure
• malignant prostate neoplasm
• diffuse connective tissue disease

Detailed Laboratory Testing Information (use the custom search buttons below to find details on these topics)

All of the following must be considered when interpreting clinical findings and are too extensive to be covered on this site: