Vitamin B12 Lvl (B12)

Department: Chemistry
Test Synonym(s): LAB67, B12, Vitamin B12 Level, B12 Level, Vit B12
CPT Codes: 82607
Methodology: Chemiluminescent Microparticle Immunoassay (CMIA)
Reference Range: 0 to 150 yrs: 213-816 pg/mL
Tube Type: Gold top SST (Clot activator with gel) - 5 mL
Specimen: Serum
Alternate Specimen: Red top (no gel)
Pediatric Requirements: 1 Gold top microtainer
Volume: 3 mL serum
Minimum Volume: 1 Gold top
Temperature: Room temperature or Refrigerated
Stability: Room temperature: 3 days; Refrigerated: 7 days; Frozen: 2 months
Reasons for Rejection: Improper collection; QNS
Days Performed: Daily
Times Performed: Continuous
Special Instructions: Effective 5/29/18, the acceptable tube type for Vitamin B12 testing is Gold Top tube. Alternatively, a red top tube is also acceptable.

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