Test ID: B12A
Patient Instructions:
No vitamin B12 containing supplements for 24 hours prior to testing. (This test is referred to an external laboratory)
Turnaround time: 3 days (temporarily increased from 2 to 3-days 11th May 2026)
Sample Collection Instructions: Standard venepuncture procedure
Sample Requirements: Yellow (SST)
Sample Stability: Postal acceptable
Test Datasheet: Vitamin B12 datasheet