I am Dr. Arun and will be helping you today.
YOU will pass CDT test; since you have not taken a drink for 8 weeks. An high GGT in your case is likely due to antibiotics or some medications. An high GGT has other causes too, apart from alcoholism.
Liver gamma glutamyl transpeptidase (GGT) can be raised by:
3) barbiturates, and
Clinically, its main utility is suggesting a liver source for an elevated alkaline phosphatase. So if your alkaline phosphatase is normal; nothing to worry.
It has a low predictive value (32%) for hepatobiliary (liver and bile) disease, as it is present in numerous body compartments, including kidney tubules, pancreas (ductules and acinar cells), heart, lung, and brain.
Other clinical conditions in which GGT elevation has been reported are;
1) diabetes mellitus,
3) rheumatoid arthritis, and
4) chronic obstructive pulmonary disease.
Its clinical utility in assessing surreptitious alcohol use is questionable, as it has a half-life of 26 days and demonstrates poor correlation with alcohol binging.
Please feel free for your follow up questions.
I would be happy to assist you further, if you need any more information.
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