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Geisinger Medical Laboratories Test Catalog
TRANSFERRIN, CARBOHYDRATE-DEFICIENT (ALCOHOL USE) |
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Geisinger Epic Procedure Code: LAB1254
Geisinger Epic ID: 52941
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SPECIMEN COLLECTION |
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Specimen type: |
Serum | |
Preferred collection container: |
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Alternate Collection Container: |
6 mL red-top (plain, non-serum separator) tube
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Specimen required: |
1 mL serum; minimum 0.5 mL. | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Serum samples must be fully coagulated, centrifuged within 1 hour of collection, and must not contain any particles or traces of fibrin after centrifugation. Transfer serum to a clean, plastic, screw-cap vial. | |
Transport temperature: |
Refrigerated (cold packs), | |
Specimen stability: |
Room temperature: 24 hours. Refrigerated: 7 days. Frozen: 90 days. | |
Rejection criteria: |
Gross hemolysis • Grossly lipemic • Grossly icteric | |
TEST DETAILS |
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CPT code(s): |
82373, 84466 | |
| Note: The billing party has sole responsibility for CPT coding. Any questions regarding coding should be directed to the payer being billed. The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only. | ||
Test includes: |
CDT; Transferrin; Percent CDT | |
Methodology: |
Nephelometry |
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Synonyms: |
Quest test code 16985, Carb Def Tra; Carbohydrate Deficient Transferrin,CDT
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Clinical significance: |
Heavy alcohol use (defined as >4 or 5 beverages per day for two weeks or more) is commonly associated with elevated CDT levels as are certain liver diseases such as primary biliary cirrhosis and chronic active hepatitis and in some patients with genetic D variants of transferrin. | |