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Test Name:
Insulin, Total


  • TMF No:
    30030
  • Performance Lab Name:
    TMF Automated Laboratory / Hematology
  • Test Mnemonic:
    INSULIN-
  • CPT Code:
    83525
  • Spec Collect:
    Gold top (SST) or Light Green top (PST) tube. Also acceptable: Red top (serum), Green top (lithium heparin), Lavender top (EDTA), or Light Blue top (sodium citrate) tube. Mix by inverting tube 8 times.
  • Spec Process:
    Allow serum specimen to clot completely at room temperature. Centrifuge to separate serum or plasma from cells ASAP or within 1 hour of collection. Transfer 1 mL serum or plasma to a plastic transport tube. (Min: 0.5 mL)
  • Spec Store Transport:
    Frozen.
  • Spec Stability:
    After separation from cells:
    Room temperature: 4 hours
    Refrigerated: 24 hours
    Frozen: 6 months (avoid repeated freeze/thaw cycles)
  • Spec Reject:
    Hemolyzed or heat-inactivated specimens.
  • Methodology:
    Electrochemiluminescent Immunoassay (ECLIA)
  • Use:
    Utilized in the diagnosis and therapy of various disorders of carbohydrate metabolism, including diabetes mellitus and hypoglycemia
  • Additional Test Info:
    Lab Tests Online
  • Day Run:
    Mon-Sat
  • Test Type:
    HORMONE