Vitamin B12
Methodology
Ortho Vitros 7600, Competitive binding Immunoassay technique
Performing Laboratory
Heart of the Rockies Regional Medical Center
Specimen Requirements
Specimen Type: Plasma/serum
Container/Tube:
Plasma: Light-green top or Lavendar top
Serum: Yellow top, tiger top or red top
Specimen Minimum Volume: 1 mL
Specimen Transport Temperature
Ambient/Refrigerated OK
Reference Values
239-931 pg/mL (ng/L)
Levels above 300 or 400 pg/mL are rarely associated with B12 deficiency induced hematological or neurological diseases respectively. Further testing is suggested for symptomatic patients with B12 between 100 and 300 pg/ml(ng/L)
Day(s) Test Set Up
M - F
Test Classification and CPT Coding
82607