CDG Evaluation; CDT for CDG
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Carbohydrate Deficient Transferrin (CDT) for Congenital Disorders of Glycosylation (CDG), Serum
Test ID: CDGT
Test
Aliases/Synonyms
Method
HPLC with UV detection
Report Includes
CDG Transferrin
Specimens
Serum
Clinical Utility
This Carbohydrate-deficient transferrin (CDT) assay is intended for diagnosis of congenital disorders of glycosylation (CDG). CDT analysis for evaluation of alcohol use is also available: Carbohydrate-deficient Transferrin (CDT) (Alcohol Use), Serum.
Test Location
Hospital for Sick Children, 555 University Avenue, Toronto ON M5G 1X8
Test Version
18-Mar-2020
Specimen
Specimens
Serum
Collection Containers
Preferred
SST (Gold Top)
Acceptable
No Additive (Red Top)
Sample Volume
0.5 mL
Minimum Volume
0.25 mL
Collection & Handling
Handling Information
Separate within 1 hour and freeze immediately. Store and send frozen.
Stability
| Ambient | Not Acceptable |
|---|---|
| Refrigerated | Not Acceptable |
Additional Stability Information
If the specimen thaws, it is unsuitable for analysis.
Rejection Criteria
| Specimen | Not frozen |
|---|
Test Version
18-Mar-2020
Performance / Interpretation
Method
HPLC with UV detection
Turnaround Time
23 days
Results
| Name | Units | Reference Range | Conversion Factor | |
|---|---|---|---|---|
| CDG Transferrin | None |
|
||
Test Location
Hospital for Sick Children, 555 University Avenue, Toronto ON M5G 1X8
Test Version
18-Mar-2020
Interface / Setup
HL7 Interface Codes
| Order Code | Result Codes | Units |
|---|---|---|
| CDGT | 62600CDG Transferrin, Serum |
Test Version
18-Mar-2020