Gamma Aminobutyric Acid With 5 Htp

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Definition

Gamma-glutamyl transpeptidase (GGT) is a test to measure the amount of the enzyme GGT in the blood.


Alternative Names

Gamma-GT; GGTP; GGT


How the test is performed

A blood sample is needed. For information on how this is done, see: Venipuncture


How to prepare for the test

The health care provider may advise you to stop taking any drugs that can affect the test.

  • Drugs that can increase GGT levels include alcohol, phenytoin, and phenobarbital.
  • Drugs that can decrease GGT levels include...
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