Alanine aminotransferase, or ALT, is an enzyme found concentrated in the liver and in small amounts in the kidneys and the heart, states WebMD. An ALT test checks the blood for this enzyme, as its presence indicates pote... More »

According to WebMD, ALT, also known as alanine aminotransferase, is an enzyme present in blood. Previously known as SGPT, or serum glutamic pyruvic transaminase, it is released by a damaged or diseased liver. As such, hi... More »

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The ALT test checks the level of alanine aminotransferase in the blood to see if the liver is healthy. Elevated levels of the enzyme could indicate damage caused by trauma or a disease process, such as cirrhosis or a str... More »

The ALT test checks the level of alanine aminotransferase in the blood to see if the liver is healthy. Elevated levels of the enzyme could indicate damage caused by trauma or a disease process, such as cirrhosis or a str... More »

SGPT, or serum glutamic pyruvic transaminase, is an enzyme that enters the blood when the heart or liver are damaged, according to MedicineNet. When a condition like hepatitis C causes damage to the liver, SGPT levels ri... More »

The normal range for an alanine aminotransferase, or ALT, test is 10 to 40 units per liter for men. For women, the normal range is between 7 and 35 units per liter, says WebMD. More »

ALT blood levels are checked by undergoing the alanine aminotransferase test to measure the level of the enzyme in the blood, notes WebMD. The enzyme is found mainly in the liver, but it is also available in the pancreas... More »

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