ARUP's Laboratory Test Directory

Vitamin B12 Binding Capacity : 0070260

Mnemonic: B12B

Methodology: Quantitative Radioimmunoassay
Performed: Mon, Thu
Reported: 1-5 days
Specimen Required: Collect: Serum separator tube.

Specimen Preparation: Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.1 mL)

Storage/Transport Temperature: Refrigerated.

Stability (collection to initiation of testing): After separation from cells: Ambient: 6 hours; Refrigerated: 1 week; Frozen: 1 month

Reference Interval:
800-2600 pg/mL
Interpretive Data: This assay measures the unsaturated binding capacity of serum for vitamin B12.
CPT Code(s): 82608