Test Code B12 Vitamin B12, Serum
Performing Laboratory
ChristianaCare-Newark Campus
Methodology
Electrochemiluminescent Immunoassay
Specimen Requirements
Container/Tube: 3.5-mL red-top (gel) tube
Specimen: Full tube
Collection Instructions:
Note: Label tube with patient’s full name and 1 additional unique patient identifier such as date of birth, medical record number, emergency ID number, date and time of draw, collector’s initials, and type of specimen.
Reference Values
≥250 pg/mL
Day(s) Test Set Up
Monday through Sunday
Routine Turnaround Time: 8 hours
STAT Turnaround Time: not available