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HelpTest ID BLOD1575 Vitamin B12 Reflex to Methylmalonic Acid
AKA
B12, Cyanocobalamin
Specimen Type/Requirements
Gold top (Serum w/gel) tube - Serum
Fasting specimen is preferred.
Test is affected by hemolysis. Test is affected by lipemia.
Specimen Volume
| Preferred Volume | 1.0 mL |
|---|---|
| Minimum Volume | 0.5 mL |
Stability/Transport
| Room Temperature | 3 days | |
|---|---|---|
| Refrigerated | 7 days | Preferred for transport |
| Frozen | > 7 days at -20 C |
Performed Test Frequency
Monday through Sunday
Additional Information
This test will reflex to Methylmalonic Acid (BLOD0103) at an additional cost if Vitamin B12 is <300 g/mL.
Methodology
Chemiluminesence Immunoassay - Competitive
Performing Lab
Sanford Laboratories Bismarck
CPT
82607