Test ID: Z4433
CPT code: 82608
LOINC: 15052-4
Specimen Type: Plain red or SST
Frequency: Setup: Mon, Thurs; analytic time 5 days
Instructions: 1mL serum from red or SST tube. Refrigerate. Min 0.1mL. Patient should
fast 12-15 hours prior to collection.
Text: This test measures the unsaturated binding capacity for serum for
Vitamin B12.
Methodology: Quantitative Radioimmunoassay