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HelpTest Code LAB67 Vitamin B12
Additional Codes
B12
Collection:
Specimen: Blood
Container: SST (Preferred) or Red Top. Hemolyzed specimens are unacceptable.
Specimen Volume: 5 mL; Minimum 1.0 mL
Pediatric Collection:
Two Gold or Red Top microtainer filled to 600 uL. Hemolyzed specimens are unacceptable.
Stability:
Once serum is separated from cells:
Ambient: 8 Hours
Refrigerated (preferred): 1 Week
Frozen: 2 Weeks
Turnaround Time (TAT):
STAT: 2 HOURS
Routine: 4 HOURS
Test Availability:
Daily / 24 Hours / Available STAT
Performing Laboratory Section:
Chemistry / UMC MAIN LABORATORY
Reference Interval:
211 - 911 pg/mL