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Methylmalonic Acid, serum

Item Value
Clinical Questions Does my patient have anemia due to a nutritional deficiency?
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.
CPT coding 83789-90
LOINC code 13964-2
Last Updated 6/21/2016 07:45:47
Entry Number 659
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