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MMA / MMAU-M
METHYLMALONIC ACID (MMA), QUANTITATIVE, RANDOM URINE

Test Code MMA / MMAU-M 
Test METHYLMALONIC ACID (MMA), QUANTITATIVE, RANDOM URINE 
Methodology Liquid Chromatography-Tandem Mass Spectrometry
(LC-MS/MS) Stable Isotope Dilution Analysis 
Description Useful in the diagnosis of cobalamin (vitamin B12) deficiency 
Specimen 5.0 mL (minimum: 0.25 mL) from a random urine specimen. Collect second-voided specimen after an overnight fast. Send specimen frozen in a plastic tube.

NOTE: INDICATE URINE ON REQUEST FORM. 

Reference Values < 3.60 mmol/mol creatinine 
Analytic Time 3 Days 
Day(s) Test Set Up Monday through Friday 
CPT Code(s) 83921