| Test Name: | Methylenetetrahydrofolate Reductase Gene 677 |
| Epic Order Code: | LAB739 |
| CPT Code: | 81291 | | |
| Specimen(s) Type: | Whole Blood; 3 mL |
| Acceptable Container(s): |  Top is purple (lavender). |
| Testing Schedule: | Testing is performed once per week. Call lab at (601) 984-2365 for availability. |
| Turn Around Time: | STAT: NA |
| | Routine: 8 hours after run has started |
| Collection Information: | No special patient preparation is required. Obtain specimen by standard collection procedures. |
| Transport Information: | Deliver to lab immediately. |
| Reference Clients: | If unable to deliver to the lab immediately, store and transport at 2-8° C. Do not centrifuge. Specimen must be received in lab within 10 days. |
| Causes for Rejection: | Improperly labeled, incorrect container, contaminated, insufficient quantity, incorrect/delay in transport. |
| Reference Range: | Not detected |
| Additional Information: | Detects Methylenetetrahydrofolate Reductase, which catalyzes a reaction important in homocysteine metabolism. Elevated homocysteine is a risk factor for venous thromboembolic disease and ischemic arterial disease. |