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Test Name:
Ribonucleic Protein (RNP and Sm/RNP) IgG Antibodies


  • SBMF No:
    28334
  • Performance Lab Name:
    Immunology
  • Test Mnemonic:
    RNP IGG AB
  • ABN:
    Not required
  • CPT Code:
    86235x2
  • LOINC Code:
    31588-7; 21522-8; 48767-8
  • Test Includes:
    Ribonucleic Protein (RNP) IgG Antibody
    Smith/Ribonucleic Protein (Sm/RNP) IgG Antibody
  • Also Known As:
    Extractable Nuclear Antigen (ENA) Antibodies
  • Also See:
    28347 Mixed Connective Tissue Disease (MCTD) Panel
  • Spec Type:
    Serum
  • Spec Container:
    Gold top (SST) or red top (serum) tube
  • Pref Vol:
    1.0 mL
  • Min Vol:
    0.5 mL
  • Fasting:
    No
  • Spec Collect:
    Routine venipuncture
  • Spec Process:
    Clot 30 minutes
    Promptly centrifuge 15 minutes
    Immediately transfer serum to separate plastic tube
    Properly centrifuged gel barrier tube sample does not require transfer of serum to separate tube
  • Spec Store Transport:
    Refrigerated
  • Spec Stability:
    1 week refrigerated (2-8°C)
    1 month frozen (-20°) – Do not use frost-free units that undergo repeated freeze/thaw cycles
  • Methodology:
    Multiplex Flow Immunoassay
  • Day Run:
    Mon, Wed, Fri
  • Time Run:
    6:00 am
  • Time Reported:
    5:00 pm
  • Test Type:
    IMMUNOLOGY