Sign in →

Test Code B12 Vitamin B12

Collection Container

Serum gel

Specimen Required

Serum

Other Acceptable Specimen Types

Heparinized or EDTA Plasma

Specimen Volume

0.5 mL

Minimum Specimen Volume

0.3 mL

Transport Temperature

Refrigerate

Specimen Stability

Room temperature: 1 day, Refrigerated: 6 days, Frozen: 2
months

Reasons for Rejection

Grossly hemolyzed

Methodology

Electrochemiluminescence immunoassay (ECLIA)

Reference Ranges

232-1245 pg/mL

Turnaround Time

24 hours

Day(s) and Time(s) Performed

Test performed daily

CPT Code

82607

Units of Measure

pg/mL

LOINC Code

2132-9