Which CBC findings are characteristic of thrombotic thrombocytopenic purpura (TTP)?

Updated: May 25, 2021
  • Author: Theodore Wun, MD, FACP; Chief Editor: Srikanth Nagalla, MD, MS, FACP  more...
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Complete blood count (CBC) findings in patients with thrombotic thrombocytopenic purpura (TTP) are usually as follows:

  • Total white blood cell count is normal or slightly elevated

  • Hemoglobin concentration is moderately depressed at 8-9 g/dL

  • Platelet count generally ranges from 20,000-50,000/μL

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