These tests can be used to assess liver functions or liver injury.
An initial step in detecting liver damage is a simple blood test to determine the level of certain liver enzymes (proteins) in the blood.
Among the most sensitive and widely used liver enzymes are the aminotransferases.
They include aspartate aminotransferase (AST or SGOT) and alanine aminotransferase (ALT or SGPT).
Other blood tests pertaining to the liver are measurements of some of the other enzymes found the liver.
In addition to AST and ALT, alkaline phosphatase, 5' nucleotidase, and gamma-glutamyl transpeptidase (GGT) are a few of the other enzymes located in the liver.
Luckily, President Solis was able to see the funny side of his latest 'meal', as he is handed a bottle of water.'You don't see that every day - they're going to send it to CNN, pure protein!
The liver is located in the right upper portion of the abdominal cavity just beneath the rib cage.
ALT (SGPT) is, by contrast, normally found largely in the liver.
This is not to say that it is exclusively located in the liver, but that is where it is most concentrated.
For example: AST (SGOT) is normally found in a variety of tissues including liver, heart, muscle, kidney, and the brain.