Laboratory Medicine

Test Directory / Carbohydrate Deficient Transferrin

Carbohydrate Deficient Transferrin

Brown clotted serum, gel barrier

Test	Carbohydrate Deficient Transferrin
Common Abbreviations	CDT
Profile	NA
Tube type	Brown clotted serum, gel barrier
Clinical Indication	Biomarker for heavy alcohol consumption over an extended period of time. Excess alcohol intake significantly increases the percentage of carbohydrate deficient transferrin. This increase is independent of the presence of liver disease.
Specimen Type	Blood
Sample type	Serum
Minimum Volume	0.5mL
Special Precautions	No special requirements
Stability	Contact Referral Laboratory
Turnaround Time	3 - 5 days
Laboratory	Viapath King's College Hospital London SE5 9RS 0203 299 3856
Reference Interval	Contact Referral Laboratory
Limitations	Contact Referral Laboratory
Notes

Update for visitors

Visiting restrictions are in place at our hospitals to stop the spread of norovirus. These restrictions will be in place until further notice.

The following wards are closed to visitors:

All wards at York Hospital

Coronary Care and Ash Ward at Scarborough Hospital

There are four exceptions only to the restrictions. These are:

For patients who are receiving end of life care

Paediatric patients (babies and children)

Maternity care

The family carers of those with dementia

We understand these restrictions can be difficult when a loved one is unwell. The restrictions will be reviewed daily and lifted as soon as it is safe. Thank you for your understanding as we try to reduce the spread of norovirus in our hospitals.