What Does ALT (SGPT) Mean in a Blood Test?

By Staff WriterLast Updated Apr 6, 2020 1:57:11 AM ET

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 strain of hepatitis, as stated by WebMD.