Immune Thrombocytopenia (ITP) in Emergency Medicine Workup

Updated: Sep 13, 2021
  • Author: Michael A Silverman, MD, FACEP; Chief Editor: Gil Z Shlamovitz, MD, FACEP  more...
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Workup

Laboratory Studies

Isolated thrombocytopenia on a complete blood cell count (CBC) is the key laboratory finding. The white blood cell (WBC) count and hemoglobin level typically are normal, unless severe hemorrhage has occurred. On peripheral smear, truly giant platelets suggest congenital thrombocytopenia. Coagulation study results are normal, and a bleeding time is not useful.

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Imaging Studies

A CT scan of the head is warranted if concern exists regarding intracranial hemorrhage.

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