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HelpMethylenetetrahydrofolate (QST)
eDH Procedure Code
LAB2705 Methylenetetrahydrofolate —LAB ONLY
Collection Information
Preferred specimen: 5 mL whole blood collected in an EDTA tube.
Alternative Specimen: whole blood collected in sodium heparin (green-top), ACD solution A or B (yellow-top) tube, or lithium heparin (green-top) tube.
Specimen Information
| Specimen Type | Specimen Source | Acceptable Containers | Minimum Test Volume (mL) | |
|---|---|---|---|---|
| Blood | Blood, Venous | ACDB-A | 5.0 | |
| Blood | Blood, Venous | ACDA-A | 5.0 | |
| Blood | Blood, Venous | GrnLHNG-A | 5.0 | |
| Blood | Blood, Venous | DkGrn10-A | 5.0 | |
| Blood | Blood, Venous | Lav6-A | 5.0 | |
Shipping and Handling
Processing Instructions: Do not spin.
Transport Temperature: Ambient
Transport Instructions: N/A
Specimen Stability Unprocessed
Unprocessed: N/A
Specimen Stability Post Processing
Ambient: 8 days
Refrigerate: 8 days
Frozen: 30 days
Test Components
| Component | LOINC Code |
|---|---|
| MTHFR INTERPRETATION (QST) | |
| MTHFR MUTATION (QST) |
CPT Code(s)
81291
Performing Lab Section
Sendouts