# Carbohydrate-deficient Transferrin (CDT), Adult

> This test measures specific changes to transferrin, a protein in your blood that carries iron, which occur after heavy alcohol consumption. It helps show whether a person has been drinking large amounts of alcohol regularly over the past few weeks. Doctors use this result to distinguish alcohol-related health issues from other medical conditions or to monitor abstinence. However, this test cannot diagnose genetic disorders or evaluate severe liver damage caused by advanced disease.

- Labcorp code: 123211
- Category: [Heart & Metabolic](https://app.picardo.health/labs/tests/heart-metabolic.md)
- Price: shown at checkout, before payment.
- Blood draw: free at a Labcorp location, or $75.00 at home.
- Order link: https://app.picardo.health/labs/order?tests=123211&ref=assistant

## About ordering

A licensed physician reviews every order before any test is run, and results arrive in the person's 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.