Methylmalonic Acid (MMA), Urine Quantitative MMAUR

Method(s)	Tandem Mass Spectrometry
Specimen Required
Collect	24 hour or random urine. Refrigerate sample during collection.
Transport	4 mL aliquot from 24 hour or random urine, frozen. (Min: 1 mL) Record total volume and collection time interval on transport tube and test request form.
Stability	Ambient: Unacceptable; Refrigerated: 4 days; Frozen: 1 month
Unacceptable Conditions	Room temperature specimens.
Schedule	Mon - Fri
Billing Code	5010656
CPTCode	83921
Notes	The most important aspect of specimen preservation is adequate refrigeration during collection, storage, and transport.
Preferred Specimen Collection Device(s)
24-Hour Urine Collection Container
Reference Interval
Component Reference Interval   Methylmalonic Acid, Urine 0.0-3.6 mmol/mol crt   Creatinine (24-hour) MALE: FEMALE:   3-8 years: 140-700 mg/d 3-8 years: 140-700 mg/d   9-12 years: 300-1300 mg/d 9-12 years: 300-1300 mg/d   13-17 years: 500-2300 mg/d 13-17 years: 400-1600 mg/d   18-50 years: 1000-2500 mg/d 18-50 years: 700-1600 mg/d   51-80 years: 800-2100 mg/d 51-80 years: 500-1400 mg/d   81 years and older: 600-2000 mg/d 81 years and older: 400-1300 mg/d