Alpha Medical Lab
Folate
Ordered Test Code:
FOL
| Lab Test Component | Requirement |
|---|---|
| Test Name | Folate |
| Alpha’s Order Test Code | FOL |
| Specimen Collection Tube | SST/1mL |
| Collection Tube Handling | Amber vial |
| Minimum Volume | 0.5mL |
| Transport Temperture | Refrigerated |
| Stability | Refrigerated: 7 days; Frozen: 30 days |
| Collection Instructions | 1mL serum. Dietary supplements containing biotin may interfere in assays and may skew analyte results to be either falsely high or falsely low. For patients receiving the recommended daily doses of biotin, draw samples at least 8 hours following the last biotin supplementation. For patients on mega-doses of biotin supplements, draw samples at least 72 hours following the last biotin supplementation. |
Clinical Significance
Folic acid deficiency is common in pregnant women, alcoholics, in patients whose diets do not include raw fruits and vegetables, and in people with structural damage to the small intestine. The most reliable and direct method of diagnosing folate deficiency is the determination of folate levels in both erythrocytes and serum. Low folic acid levels, however, can also be the result of a primary vitamin B12 deficiency that decreases the ability of cells to take up folic acid.
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