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HelpTest ID BLOD1575 Vitamin B12 Reflex to Methylmalonic Acid
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
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)
AKA
B12, Cyanocobalamin
Additional Information
This test will reflex to Methylmalonic Acid (BLOD0103) at an additional cost if Vitamin B12 is <300 pg/mL.