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Test Name:
1p/19q Deletion, by FISH


  • SBMF No:
    44973
  • Performance Lab Name:
    ARUP Laboratories
  • Test Mnemonic:
    1P19Q
  • ABN:
    Not required
  • CPT Code:
    88368x4
  • Ref Lab Test No:
    0049360
  • Also Known As:
    Gliomas
    Oligoastrocytomas
    Oligodendrogliomas
  • Spec Type:
    Tumor tissue
  • Spec Collect:
    Collected by physician
  • Spec Process:
    Formalin fix (10% neutral buffered formalin) and paraffin-embed tissue. Transport tissue block or 6 unstained 5 micron slides. (Min: 3 slides)
  • Spec Store Transport:
    Room temperature or refrigerated
    Protect paraffin block from excessive heat
    Ship in cooled container during summer months
  • Spec Stability:
    Room temperature (20-30°C): Indefinitely
    Refrigerated (2-8°C): Indefinitely
    Frozen (-20°C): Unacceptable
  • Spec Reject:
    No tumor in tissue
    Frozen specimen
    Specimen fixed/processed in alternative fixative (alcohol, Prefer®) or heavy metal fixatives (B-4 or B-5)
    Decalcified specimens
  • Spec Remarks:
    Include surgical pathology report
  • Methodology:
    Fluorescence in Situ Hybridization (FISH)
  • Clinical Significance:
    Refer to:
    ARUP Consult | The Physician's Guide to Laboratory Test Selection and Interpretation
  • Reference Range:
    By report
  • Additional Test Info:
    ASR Compliance Statement:
    Analyte specific reagents (ASR) are used in many laboratory tests necessary for standard medical care and generally do not require U.S. Food and Drug Administration (FDA) approval or clearance. This test was developed and its performance characteristics determined by ARUP Laboratories. The U.S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions. This test should not be regarded as investigational or for research use.
  • Day Run:
    Varies
  • Time Reported:
    Within 2 weeks
  • Test Type:
    GENETIC