EPIC Test Name: VITAMIN B12
Collect blood in SST tube. Allow to clot. Centrifuge and store refrigerated until transported to lab. If transportation will be delayed more than 8 hours, aliquot serum and freeze.
Specimen Type: Serum (preferred) or Plasma
Container/Tube: SST or Lithium Heparin (Green top)
Sample Volume: 1 mL
Minimum Volume: 0.2 mL (Repeat testing is not possible with this specimen volume.)
Stability (collection to time of analysis/testing):
- Refrigerated: 8 hours
- Frozen: 6-8 weeks
Solid-phase, competative chemiluminescent enzyme immunoassay involving an automated alkaline denaturation procedure.
1-3 business days
Monday - Friday