Dr. Lal PathLabs - Vitamin B12 test
methylmalonic acid, quantitative, serum
Doctor Information
Pre-test Information
No special preparation required
Report Delivery
Sample Fri by 6 pm; Report Sat
Code
G189
Category
N/A
Stability Room
8 hrs
Stability Refrigerated
1 week
Stability Frozen
6 weeks
Method
LC-MS/MS
Specimen
2 mL (1 mL min.) Serum from 1 SST. Separate serum within 1 hour of collection. Ship refrigerated or frozen.
Usage
This assay is an early and sensitive indicator of Vitamin B12 (Cobalamin) deficiency. MMA is a sensitive indicator which detects early Vitamin B12 deficiency. In pediatric patients, elevated MMA values indicate a probable Methylmalonic acidemia whereas in adults, it is indicative of Cobalamin deficiency.


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