Test ID: B12
CPT code: 82607
LOINC: 2132-9
Specimen Type: SERUM
Frequency: Setup: Mon-Fri; TAT 1-3 days
Instructions: 1.0 mL serum from SST tube, refrigerated. Min 0.5 mL.
Text: Useful in the investigation of macrocytic anemia and work-up of deficiencies seen in megaloblastic anemias. Also used for diagnosis and investigation of some neurological disorders.
Methodology: Chemiluminescence Assay