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Laboratory Test Directory

Heparin-Induced Thrombocytopenia Screen


Name Method Department Units
Heparin-Induced Thrombocytopenia Screen PIFA PF4 Rapid Assay
Core Lab, Coagulation Negative or Positive

Specimen Requirements

Reasons for Rejection

  • Wrong collection tube
  • Not received within specified time frame
  • Over or under filled tube
  • Moderate to grossly hemolyzed
  • Centrifuged specimen


Samples that require testing on off-hours (4pm-7am Mon-Fri, Saturday and Sunday) must be arranged with the Clinical Pathologist on-call. Contact the main laboratory (614-722-5351) to initiate testing on off-hours. Samples must be collected at main campus. This is a screening assay for the presence of Heparin-Induced Thrombocytopenia (HIT). The result of this assay should be correlated with clinical findings to make a diagnosis of HIT.

CPT Code

  • 86022