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Also known as: methylmalonic acid blood test, MMA, plasma MMA
A plasma methylmalonic acid test is a test to determine the levels of methylmalonic acid in the blood plasma. It is a helpful test in the diagnosis of a vitamin B12 deficiency, and also for a disorder known as methymalonic acidemia.
A routine blood draw is required in order to begin the plasma methylmalonic acid - plasma test. The blood sample is then taken to a laboratory for testing and analysis.
There is no special preparation needed.
Infection, bleeding and damage to surrounding organs and tissues are potential risks of any blood draw.
Reviewed by: Sajel L Kana, MD
This page was last updated on: March 26, 2019 12:26 PM