Vitamin B12, Blood - Saskatoon
Discipline
Biochemistry
Specimen Information
Specimen types accepted
- Plasma
Specimen collection container
- Preferred Collection Container: Light Green (Lithium Heparin gel)
- Alternative Collection Container: Gold (gel)
Required volume
- Optimal Volume: 4.5 mL Full collection tube
- Minimum Volume: 1.0 mL
(Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory/reflex testing. In some situations, a minimum volume may require a second collection.)
Transport and stability
- 4 hours on cells
- 1 days at 2 – 8 ºC on Lithium Heparin (gel) or Gold (gel)
- 2 days at 2 – 8 ºC when removed from gel
Rejection criteria
Grounds for Rejection
- Specimens received where the proper collection protocols were not followed
- Pathology and Laboratory Medicine Acceptance and Rejection Criteria
Performance
Days/times performed
- 24 hours a day
- Testing site: St, Paul's Hospital (SPH)
Maximum laboratory time
- In Hospital reported within 2 hours
- Community urgent and inter-hospital reported within 4 hours
- Community Routine reported within 24 hours
Last Updated: October 24, 2024