This article is from the Interpretation Of Lab Test Profiles, by Ed Uthman email@example.com with numerous contributions by others.
Increase of serum alanine aminotransferase (ALT, formerly
called "SGPT") is seen in any condition involving necrosis of
hepatocytes, myocardial cells, erythrocytes, or skeletal muscle
cells. [See "Bilirubin, total," below]