C.D.T IFCC

C.D.T IFCC


The C.D.T (IFCC standardised) blood test measures carbohydrate deficient transferrin, a protein that increases in the blood after prolonged excessive alcohol consumption. Unlike short-term alcohol tests, CDT reflects drinking patterns over the previous 2–3 weeks. It is commonly used in clinical assessments, workplace testing, and alcohol monitoring programmes. Results can help healthcare professionals evaluate alcohol-related health risks and support appropriate guidance or treatment.

Parameters Covered

C.D.T IFCC

What the Test Measures

This test measures the level of carbohydrate deficient transferrin (CDT) in your blood. Elevated levels may indicate regular heavy alcohol consumption over a sustained period, rather than occasional drinking.

Turnaround Time for Results


Leicester: Most results are available within 1–2 working days (some tests may take longer)
Outside Leicester: Results are typically available within 2–4 working days (some tests may take longer)
Certain parameters: Some specialised tests may take 2–3 weeks to process.

How Results Are Delivered

Your personalised report will be securely sent to your registered email address.