Alanine aminotransferase (ALT) is present primarily in liver cells. In viral hepatitis and other forms of liver disease associated with hepatic necrosis, serum ALT is elevated even before the clinical signs and symptoms of the disease appear. Although serum levels of both aspartate aminotransferase (AST) and ALT become elevated whenever disease processes affect liver cell integrity, ALT is a more liver-specific enzyme. Serum elevations of ALT are rarely observed in conditions other than parenchymal liver disease. Moreover, the elevation of ALT activity persists longer than does AST activity.
No specific preparation required
Download the free health test app from Dr. B. Lal Clinical Laboratory. Find all the healthcare information and needs you require in just one place. You can schedule home collection, see reports, save medical history, search for more than 1800 tests, and more with just one app. Available both on iOS and Android. Simplify healthcare, download the Dr. B. Lal Clinical Lab App.