Last Modified:
3/27/2019 12:15:07 PM
Patient Preparation:
Fasting preferred
Specimen Requirements:
1.0 mL Serum from a Red Top Tube in a Plastic Vial
Collection 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.
Minimum Volume:
0.5 mL Serum
Transport & Storage: Temperature/Stability:
24 hours Ambient
7 days Refrigerated
90 days Frozen
Rejection Criteria:
Gross hemolysis • Gross lipemia • Grossly icteric
Reference Range:
| CDT |
28.1-76.0 mg/L |
| Transferrin |
188-341 mg/dL |
| % CDT |
<2.5 % |
Methodology:
Nephelometry
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.
Custom Panel:
No
PRODUCTION SCHEDULE
Turn Around Time:
1 to 2 days
Days Performed:
Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
Sites Performed:
Quest - Chantilly
PHL Test Code:
MSOT
EPIC Test Code:
Send Out Test Code:
16985
Alternate Test Names:
Carbohydrate Deficient Transferrin; CDT; Transferrin, Carbohydrate-deficient ; Transferrin, Carbohydrate-deficient (Alcohol Use); Transferrin, Carbohydrate-deficient -Alcohol Use; TTransferrin, Carbohydrate-deficient
Included Tests:
CDT; Transferrin; Percent CDT
CPT Coding:
82373, 84466
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