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About the test
What is this test done for?
SGPT or ALT (alanine aminotransferase) test is a blood test performed to detect liver injury. It is usually done in conjunction with other tests as a panel of liver function tests.
Why is it Done?
SGPT is an enzyme found in the liver. When the liver is injured due to infections like hepatitis, or cirrhosis, etc, then SGPT levels will rise and help diagnose liver disease. It is also done to distinguish between liver and cardiac diseases when interpreted along with SGOT.
When should it be performed?

It is done to evaluate a person who has signs and symptoms of a liver disorder.

Some of these signs, symptoms and conditions may include:

  • Weakness, fatigue
  • Loss of appetite
  • Nausea, vomiting
  • Abdominal swelling and/or pain
  • Jaundice
  • Dark urine, light-colored stool
  • Itching (pruritus)
  • People who are heavy drinkers.
  • Family history of liver disease.
  • Obesity
  • History of diabetes.

- suspected hepatitis A/B/C/E infection

- suspected liver cirrhosis

- monitor treatment with drugs that affect liver

How is it done
A blood sample will be collected from a vein in your arm. Fasting is not needed for sample collection.
Results could mean acute hepatitis if the levels are very high. Obstructed bile duct or cirrhosis show moderately high levels. Normal levels mean— normal liver functions.
Other Tests
Liver function tests, SGOT when done along with SGPT will help in diagnosis of the liver disease.
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