Methylmalonic Acid, Serum or Plasma (Vitamin B[12] Deficiency) : ARUP Lab Tests

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Methylmalonic Acid, Serum or Plasma (Vitamin B₁₂ Deficiency) : 0099431

Mnemonic: MMA QNT-P

Methodology:	Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Performed:	Sun-Sat
Reported:	1-2 days
Specimen Required:	Collect: Plain red or serum separator tube. Also acceptable: Green (sodium heparin), lavender (EDTA), or pink (K2EDTA). Specimen Preparation: Centrifuge and remove serum or plasma from cells within 2 hours of collection. Transfer 2 mL serum or plasma to an ARUP Standard Transport Tube and refrigerate or freeze immediately. (Min: 1 mL) Storage/Transport Temperature: Frozen. Unacceptable Conditions: Room temperature specimens. Grossly hemolyzed or lipemic specimens. Stability (collection to initiation of testing): After separation from cells: Ambient: Unacceptable; Refrigerated: 4 days; Frozen: 1 month

Reference Interval: 0.00-0.40 µmol/L
CPT Code(s):	83921
Cross References:	Cobalamin Deficiency (Methylmalonic Acid, Serum or Plasma (Vitamin B₁₂ Deficiency) , Methylmalonate (Methylmalonic Acid, Serum or Plasma (Vitamin B₁₂ Deficiency) , MMA (Methylmalonic Acid, Serum or Plasma (Vitamin B₁₂ Deficiency)) , Vitamin B₁₂ Deficiency (Methylmalonic Acid, Serum or Plasma (Vitamin B₁₂ Deficiency))

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