Test Overview
Test Methodology

Affinity Chromatography / Mass Spectrometry

Test Usage

Evaluation of alcohol abuse. Carbohydrate Deficient Transferrin (CDT) testing alone is not recommended for general screening for alcoholism. The transferrin isoform pattern in patients with chronic alcoholism is similar, although not as strikingly abnormal to that observed in Congenital Disorders of Glycosylation (CDG). Conditions such as hereditary fructose intolerance, galactosemia, and other genetic or non-genetic causes of liver disease may also result in increased levels of CDT.

Reference Range *

Mono-oligo/Di-oligo Ratio < or = 0.10

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Wednesday
Analytic Time

6 - 12 days

Soft Order Code
CDT
MiChart Code
CDT
Synonyms
  • Carbohydrate Def Transferrin
  • CDT
  • Mono-oligo/Di-oligo Ratio
  • Mono-oligosaccharide/Di-oligosaccharide transferrin ratio
Laboratory
Sendout
Reference Laboratory
Mayo CDTA (82425)
Section
Special Testing
Specimen Requirements
Collection Instructions

Collect specimen in red top or SST tube. Centrifuge, aliquot serum into a plastic vial and freeze.

Yellow Top Tube
Normal Volume
0.5 mL serum
Minimum Volume
0.1 mL serum
Additional Information

Test sent to Mayo Medical Laboratories.

Billing
CPT Code
82373
Fee Code
32068
LOINC
35469-6
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