liver enzyme

Liver function tests (LFTs or LFs), which include liver enzymes, are groups of clinical biochemistry laboratory blood assays designed to give information about the state of a patient's liver. Most liver diseases cause only mild symptoms initially, but it is vital that these diseases be detected early. Hepatic (liver) involvement in some diseases can be of crucial importance. This testing is performed by a medical technologist on a patient's serum or plasma sample obtained by phlebotomy.
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Liver /liv·er/ 1. the large, dark-red gland in the upper part of the abdomen on the right side, just beneath the diaphragm. [more]Liver enzyme - Community and Resources

a protein produced by the liver (e.g., SGOT, SGPT) that catalyzes various physiological reactions. Abnormally high levels of liver enzymes in the blood may indicate liver damage or disease. See also transaminase.