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Methylmalonic Acid, Serum or Plasma (Metabolic Disorders)

CPT Code(s): 83921
Specimen Required: Patient Preparation:
Collect:Plain red or serum separator tube. Also acceptable: Green (sodium or lithium heparin), lavender (EDTA), or pink (K2EDTA).
Specimen Preparation:Centrifuge and remove serum or plasma from cells within 2 hours of collection. Immediately transfer 2 mL serum or plasma to an RDL Standard Transport Tube and refrigerate or freeze. (Min: 1 mL)
Storage/Transport Temperature:Frozen.
Stability:After separation from cells: Ambient: Unacceptable; Refrigerated: 4 days; Frozen: 1 month
New York DOH Approval Status: This test is New York DOH approved.
Aliases:
  • MMA (Methylmalonic Acid, Serum or Plasma (Metabolic Disorders))
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