Home
HelpOrder Code LAB106 Vitamin B12 Assay, Serum and Plasma
Additional Codes
|
Test Name in EPIC |
EPIC Test Code |
Mnemonic |
|
RV VITAMIN B12 |
LAB106 |
B12 |
Useful For
Diagnosing and monitoring vitamin B12 deficiency, pernious anemia, and other macrocytic anemias.
Specimen Requirements
Specimen Type: Serum and Plasma
Collection Container/Tube:
Preferred: Lithium Heparin Plasma
Acceptable: Plain, red-top tube or SST
Specimen Volume: 2 mL
Minimum Volume: 1 mL
Specimen Stability
| Specimen Type | Temperature | Stability |
| Plasma or Serum | Ambient | 8 hours |
| Refrigerated (preferred) | 7 days | |
| Frozen | 4 weeks |
Reference Values
239-931 pg/mL
Specimens with biotin concentrations up to 20ng/mL demonstrated a less than or equal to 10% change in results. Serum biotin concentrations >20 ng/mL may falsely elevate Vitamin B12 results.
For diagnostic purposes, the results should always be assessed in conjunction with the patient's medical history, clinical examination, and other findings.
Day(s) Test Set Up
Monday through Sunday
Performing Laboratory
Ridgeview Medical Center Laboratory
Methodology
Competitive binding assay
Test Classification and CPT Coding
82607