# γ-Glutamyl Transferase (GGT)

> This test measures the level of GGT, an enzyme found primarily in the liver and bile ducts. It helps show whether there is damage to the liver or a blockage in the tubes that carry bile.

- Labcorp code: 001958
- Category: [Cancer Detection](https://picardo.health/labs/tests/cancer-detection.md)
- Sample: blood
- Labcorp turnaround: within 1 day
- Collection: free at a Labcorp location, or $75.00 at home.
- Without a doctor: yes. People order it themselves, with no doctor's visit or referral.
- Price: shown on the review page its order link opens. Opening it orders nothing.
- Order link: https://app.picardo.health/labs/order?tests=001958&ref=assistant
- Already in these panels: [Heart Health](https://picardo.health/labs/panels/heart-health.md)

## About ordering

People order for themselves, with no doctor's visit or referral, and results arrive in their Picardo account. Ordering is open to adults 18 and over in the US, except New York, New Jersey, Rhode Island, Pennsylvania, Maryland, Massachusetts, Hawaii and Maine. General health information, not medical advice.