Used in clinical and research laboratories to detect carbohydrate-deficient transferrin (CDT), a biomarker for chronic alcohol consumption. The kit enables quantitative measurement of CDT levels in human serum or plasma, aiding in the diagnosis and monitoring of alcohol use disorders. It is particularly useful for identifying long-term heavy drinking when self-reported data may be unreliable. The assay supports research into liver diseases, alcoholism relapse, and the effectiveness of treatment programs. High sensitivity and specificity allow for accurate differentiation between elevated CDT levels due to alcohol intake versus other medical conditions.