Liver Enzyme Study - GGT Test

This test measures the level of glutamyltransferase (GGT) in your blood.

This test measures the level of glutamyltransferase (GGT) in your blood.

This test is done to check the level of glutamyltransferase (GGT) in your blood. GGT is an enzyme, a type of protein. It is usually ordered with other liver function tests in a single test panel.

  • Increased levels could indicate a problem with your liver, gall bladder or bile ducts.
  • Levels can also go up because of the use of alcohol and certain medications you may be taking.

In an adult, the blood sample is taken from a vein in the arm.

  • Some medications can interfere with the test. Ask your healthcare provider if you need to stop taking any medications before the test.
  • Do not stop taking any medication unless your healthcare provider tells you to do so.

What should I ask my healthcare provider before having this test?

  • Is there any special preparation for the test? (If so, get clear instructions on what you need to do.)
  • What is the reason for the test? Will the test results change my treatment plan? If not, do I need the test?


Also known as:

Liver Function Tests
Liver Enzyme Test
Liver Enzyme Study - GGT Test
Liver Disease
Liver Damage
Laboratory Work
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