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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
Red top (Serum w/out gel) tube - Serum
Thawed samples should not be refrozen.
Test is affected by hemolysis and gross lipemia.
Specimen Volume
| Preferred Volume | 1.5 mL |
|---|---|
| Minimum Volume | 1.0 mL |
Stability/Transport
| Room Temperature | 3 days | |
|---|---|---|
| Refrigerated | 7 days | Preferred for transport |
| Frozen | Greater than 7 days |
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 pg/mL.
Methodology
Sioux Falls – Chemiluminescence
Rapid City – Electrochemiluminescence Immunoassay (ECLIA)
Performing Lab
Sanford Laboratories Sioux Falls
Sanford Laboratories Rapid City
CPT
82607, 83921 (if reflex to Methylmalonic Acid)