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Methylmalonic Acid, serum
| Item | Value |
|---|---|
| Approval req'd? | No |
| Available Stat? | No |
| Test code | MMA |
| Test group | Methylmalonic |
| Performed by | Lucille-Packard Children's Hospital |
| Sendout? | Yes |
| Method | LC-MS/MS |
| Container type | Red top (Gold top, Dark Green top acceptable) |
| Amount to Collect | 4 mL blood |
| Sample type | Serum (heparinized plasma acceptable) |
| Preferred volume | 2 mL serum or plasma |
| Min. Volume | 1 mL serum or plasma |
| Processing notes | Serum or plasma must be separated and stored frozen at -20C. |
| Units | µmole/L |
| Normal range | < 0.3 µmole/L |
| Synonyms | MMA |
| Turn around times | Test batched twice weekly. Results available: Five business days. |
| Additional information | MMA levels are determined using liquid chromatography/ tandem mass spectrometry. This test is used for the screening and identification of individuals with B12 (cobalamin) deficiency, and for monitoring patients with one of the inherited forms of methylmalonic acidemia. |
| LOINC code | 13964-2 |
| Last Updated | 10/2/2010 11:52:18 AM |
| Entry Number | 659 |
If you have additional questions regarding this test, please call: 415-353-1667