Active B12
Clinical Biochemistry
Sample and container requirements
Serum SST
Minimum volume required
500 μL serum
Special requirements
Separated serum can be sent by first class post.
Patient preparation
None
Sample viability
Turnaround time
7 days
Reference range
Please refer to report for reference ranges.
Clinical guidance
Please follow the link below to the referral laboratory website for more information: https://synlab.co.uk/test-database/active-b12-holotc/
Notes
Sent to Synnovis (Nutristasis Unit at Blackfriars Hub)
Images to go here
This information was last updated on 19 August 2026