VITAMIN B12 BINDING CAPACITY (TRANSCOBALAMIN)

Test Documentation
Specimen Required
Draw blood in a SST. Centrifuge, separate and send 1.0 mL serum (0.1 mL minimum) refrigerated in an amber screw-capped plastic vial. PROTECT FROM LIGHT.

Alternate Specimen
Serum: Red-top

Methodology
Quantitative Radioimmunoassay

Stability
Room Temperature: 6 hours; Refrigerated: 7 days; Frozen: 1 month

Reference Range
800-2600 pg/mL

Performed
Monday, Thursday

Turnaround Time4-7 days
Test CodeB12BC
CPT-4 Code (s)
82608
LOINC Codes
2171-7

Warde
Medical
Laboratory