SGPT / ALT: What It Detects, Normal Range

Overview

The SGPT / ALT (Alanine Aminotransferase), Serum test measures the level of Alanine Aminotransferase (ALT), also known as Serum Glutamate Pyruvate Transaminase (SGPT), in the blood. ALT is an enzyme found mainly in the liver. When liver cells are damaged or inflamed, ALT is released into the bloodstream, causing its levels to rise. This test is one of the most important markers of liver health and is commonly used to detect and monitor conditions such as hepatitis, fatty liver disease, liver injury, cirrhosis, and medication-related liver damage. It is often performed as part of a Liver Function Test (LFT)

What It Measures

Why Take This Test?

• To assess liver health and function. To diagnose hepatitis and other liver diseases. To monitor fatty liver disease and cirrhosis. To evaluate unexplained jaundice or abdominal pain. To monitor liver damage caused by medications or alcohol. To support routine health checkups and preventive screening.

How to Prepare

• 1No fasting is generally required. Avoid alcohol consumption for at least 24 hours before the test
• 2as it may temporarily elevate ALT levels. Avoid strenuous exercise before sample collection if possible. Inform your healthcare provider about all medications
• 3herbal supplements
• 4or vitamins you are taking
• 5as some may affect liver enzyme levels.

Description

Measures the level of Alanine Aminotransferase (ALT/SGPT) in the blood to assess liver health and detect liver cell damage.