Vitamin B12 Binding Capacity
Test Mnemonic
B12BIN
CPT Codes
- 82608 - QTY (1)
LOINC ®
2171-7
Performing Laboratory
ARUP
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | SST (Gold) | Refrigerated |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | No additive (Red) | Refrigerated |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.1 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | After separation from cells: 6 hours |
| Refrigerated | After separation from cells: 1 week |
| Frozen | After separation from cells: 1 month |
Days Performed
Mon, Thu
Turnaround Time
2 - 6 days
Methodology
| Name | Description |
|---|---|
| Radioimmunoassay (RIA) |
Reference Range
| Vitamin B12 Binding Capacity | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Normal | 800 - 2600 | pg/mL |
Special Info
Patient should fast for 12 - 15 hours prior to collection. Vitamin B12 supplements should not be administered within 72 hours of blood draw.
Clinical Info
Measures unsaturated binding capacity of serum for Vitamin B12.