Vitamin B<sub>12</sub> and Folates
| Vitamin B12 and Folates | | | |
| Number | | 000810 |
| CPT | | 82607; 82746 |
| Test Includes | | Folate; vitamin B12 |
| Specimen | | Serum |
| Volume | | 1.5 mL |
| Minimum Volume | | 0.6 mL (Note: This volume does not allow for repeat testing.) |
| Container | | Red-top tube or gel-barrier tube |
| Collection | | If gel-barrier tube is used, transfer separated serum immediately to a plastic transport tube. |
| Storage Instructions | | Refrigerate |
| Causes for Rejection | | Plasma specimen |
| Methodology | | Immunochemiluminometric assay (ICMA) |
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