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Vitamin B12

Source Blood
Mnemonic B12
Specimen Requirements

1 x 3 mL or 4.5 mL light green (mint) top PST tube.  Gold top SST tube also acceptable.

0.2 mL plasma or serum

Minimum Whole Blood Volumes for Micro-Collections using Microtainers

Specimen Handling  
Additional Information
Testing Location Chemistry-DSC
Rural: HRH
Testing Frequency Daily
Alternate Name(s) Cyancobalamin, Cobalamin
Reference Interval 155 - 700 pmol/L