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Vitamin B12 Binding Capacity
0070260
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Ordering Recommendation
Mnemonic
B12B
Methodology
Quantitative Radioimmunoassay
Performed
Mon, Thu
Reported
1-5 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
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.
Collect
Serum separator tube or plain red.
Specimen Preparation
Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.1 mL)
Storage/Transport Temperature
Refrigerated.
Unacceptable Conditions
Plasma.
Remarks
Stability
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.
Compliance Category
Standard
Note
Hotline History
N/A
CPT Codes
82608
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 0070260 | Vitamin B12 Binding Capacity | 2171-7 |
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
- B12, B12B
- transcobalamin
Vitamin B12 Binding Capacity
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