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Test Name:
Phenylethylmalonamide, Serum or Plasma


  • SBMF No:
    45192
  • Performance Lab Name:
    NMS Labs
  • Test Mnemonic:
    PEMA SP
  • ABN:
    Not required
  • CPT Code:
    80299
  • LOINC Code:
    19146-0
  • Ref Lab Test No:
    3707SP (Quest# S50772)
  • Also Known As:
    PEMA, Primidone Metabolite
  • Spec Type:
    Serum or plasma
  • Spec Container:

    Red top (serum), Lavender top (EDTA), Green top (heparin), or Gray top (fluoride/oxalate) tube **

    ** NMS Labs has no experimental or literature-based data regarding the choice of specific specimen collection containers for this test

  • Pref Vol:
    2.0 mL
  • Spec Collect:
    Do not use gel-barrier tubes for specimen collection
    Routine venipuncture
  • Spec Process:
    Serum sample tubes, clot 30 minutes
    Promptly centrifuge 15 minutes
    Immediately transfer serum or plasma to separate plastic tube
  • Spec Store Transport:
    Refrigerated
  • Spec Stability:
    Undetermined
  • Spec Reject:
    Specimen collected in polymer gel separation tube (SST or PST)
  • Methodology:
    High Performance Liquid Chromatography (HPLC)
  • Use:
    Therapeutic Drug Monitoring
  • Clinical Significance:
    Antiepileptic
  • Reference Range:
    By report
  • Additional Test Info:
    This test is referred through Quest Diagnostics Nichols Institute
  • Day Run:
    Varies
  • Time Reported:
    Varies
  • Test Type:
    TOX-TDM