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Carbohydrate Deficient Transferrin
(a.k.a CDT)
minimum sample volume required ~ 5ml
Test Code: CDT
Tube type: SST
Special instructions
None
Reference Range
≤1.5% No excess alcohol intake.
1.6-1.9% Intake may be high, but not necessarily in the range of dependence.
≥2% Indicates excess alcohol intake.
Sent away
to Northern General Hospital, Sheffield
Contact Laboratory before requesting
Units
as % of Transferrin
Turnaround Time
14
days
Department: Biochemistry
Clinical Application
Test used as a marker for alcohol abuse.
Webpage updated January 2025
