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| Title | METHYLMALONIC ACID, SERUM |
| Specimen Requirement | <p>1 SST/1.0 mL serum. After 30 minutes of clotting, promptly centrifuge.</p> |
| Methodology | |
| Stability | Room Temperature Unacceptable, Refrigerated 4 days, Frozen 14 days |
| Reference Range | By Report* |
| Turnaround | 1-3 DAYS -- PERFORMED MON, WED, THURS, FRI |
| Clinical Use | <p>Methylmalonic acid is a very sensitive indicator of Vitamin B12 deficiency at the tissue level. Mildly elevated levels (0.4-1.0 umol/L) are seen in patients with decreased renal function. Extremely high levels (>20 umol/L) are indicative of methylmalonic acidemia, an inborn error of metabolism disorder.</p> |
| Test Code | MMA/A |
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