ARUP's Laboratory Test Directory

Carbohydrate Deficient Transferrin for Alcohol Use : 0070412
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Additional Technical Information
  


Mnemonic: CDT

Methodology: Quantitative Electrophoresis
Performed: Tue
Reported: 1-8 days
Specimen Required: Collect: Serum separator tube or plain red.

Specimen Preparation: Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.2 mL)

Storage/Transport Temperature: Frozen.

Unacceptable Conditions: Plasma. Hemolyzed specimens.

Stability (collection to initiation of testing): After separation from cells: Ambient: Unacceptable; Refrigerated: 10 days; Frozen: 1 month
Reference Interval:
Effective May 16, 2011
 
Normal 0-1.3%
Inconclusive 1.4-1.6%
Elevated Greater than or equal to 1.7%

Interpretive Data: This test is not suitable for the evaluation of patients suspected of having congenital glycosylation disorders.
Note: This assay can detect chronic ethanol use (greater than 40 g/day for two weeks).
CPT Code(s): 82373
Cross References: CDT (Carbohydrate Deficient Transferrin for Alcohol Use), Transferrin (Carbohydrate Deficient Transferrin for Alcohol Use)