The SGPT test, also known as the Serum Glutamic Pyruvic Transaminase test, measures the level of an enzyme called Alanine Aminotransferase (ALT) in the blood. This enzyme is mainly found in the liver and helps assess liver health. High SGPT levels may indicate liver damage due to hepatitis, fatty liver, alcohol use, or certain medications. The normal SGPT range is typically 7 to 56 units per liter (U/L) of blood, but it may vary slightly by lab. Regular SGPT testing helps detect liver problems early and supports effective treatment and lifestyle adjustments for better liver health.