In This Section

Available Tests

  • B12 (Vitamin B12)

B12 (Vitamin B12)

Tube Type

Test ID   LAB67
EPIC Order
CPT Code(s)   82607
Group/Individual Test   Individual
Laboratory   Core Laboratory
Tube Station   30
Specimen Routine: 4 mL blood/serum separator tube/gold top/red top acceptable; see important Comments
  micro: 500 uL ml blood/gold or red top bullet



24 hours
Room temperature: 24 hours
Refrigerator: 7 days
Frozen: 4 weeks
Availability Routine: 24 hours/day
Turnaround Time   4 hours
Reference Range Normal: 193-900 pg/mL
Comments Hemolyzed specimens rejected.  High doses of biotin can cause test interference.

Reviewed by Karen Hrischuk on December 13, 2019

Note: Reference ranges provided on this web site are for guidance only, and may not reflect the most recent changes. Refer to laboratory reports for current reference data.

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514