CARBOHYDRATE DEFICIENT TRANSFERRIN

Test Code

LAB1719

Quest Code

58863

CPT Codes
82373

Preferred Specimen

1 mL serum

Minimum Volume

0.5 mL

Transport Container

Transport tube

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: 48 hours
Refrigerated: 7 days
Frozen: 90 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Gross hemolysis • Grossly lipemic

Methodology
Nephelometry

Setup Schedule

Mon-Fri

Reference Range

CDT, Serum

<2.5 %

Clinical Significance

Carbohydrate-Deficient Transferrin (CDT) is a laboratory test used to help detect heavy ethanol consumption in patients with unexplained elevations of MCV, liver enzymes, HDL or idiopathic neuropathies. These CDTs used with other tests such as GGT, AST and ALT are a useful tool in identifying problem drinking, such as alcohol abuse or alcoholism. Although recent heavy alcohol use is most commonly associated with elevated CDT, certain rare liver disorders can also increase levels of CDT.

Performing Laboratory

Quest Diagnostics-Lenexa

10101 Renner Blvd

Lenexa, KS 66219-9752

Last Updated: August 13, 2021

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.