Vitamin B12, Binding Capacity
Label Mnemonic: B12BC
Epic Lab Code: LAB4248
Downtime Form: A-1a Miscellaneous Request
Commercial Mail-out Laboratory
5231 RCP
356-8593
Specimen(s):
Serum
Specimen Instructions:
Patient Preparation: Patient should fast for 12-15 hours prior to collection. Vitamin B12 supplements should not be administered within 72 hours of drawing blood for this test.
Collection Medium:
Red top tube 5 mL (Clot Activator)
Minimum:
Recommended Minimum: 1 mL serum
Absolute Minimum: 0.1 mL serum
Rejection Criteria:
Plasma
Delivery Instructions:
Deliver to laboratory immediately after collection.
Turn Around Time:
1-5 days upon receipt at reference laboratory
Reference Range:
800-2600 pg/mL
Interpretive Data:
This assay measures the unsaturated binding capacity of serum for vitamin B12.
Methodology:
Quantitative Radioimmunoassay
CPT Code:
82608
 
See Additional Information:
Specimens Requiring Immediate Delivery