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Southern medical journal · Jul 2021
HIT-It or Quit It: Heparin-Induced Thrombocytopenia Testing Appropriateness Using 4T Scoring and Inappropriate Testing Cost Analysis.
- Megan Sears-Smith, Emily Ely Daniels, Daphne Norwood, and Eric R Heidel.
- From the Departments of Internal Medicine and Surgery, University of Tennessee Medical Center Graduate School of Medicine, Knoxville.
- South. Med. J. 2021 Jul 1; 114 (7): 401-403.
ObjectivesThe American Society of Hematology's 4T scoring system is a validated tool to assess a patient's probability of having heparin-induced thrombocytopenia (HIT) before testing is performed. There is no benefit to testing patients with a low probability 4T score for HIT. This study aimed to assess for inappropriate HIT testing at our institution based on 4T scoring.MethodsWe retrospectively reviewed 201 patient charts and calculated 4T scores and testing costs to assess for inappropriate testing and the economic impact of such testing.ResultsHIT testing often occurred in the least appropriate patients and resulted in tens of thousands of dollars of waste for unnecessary testing.ConclusionsInappropriate testing for HIT is still a prevalent issue despite literature supporting the 4T score for guidance in testing appropriateness.
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