A 35-year-old female is hospitalized for knee replacement su…
A 35-year-old female is hospitalized for knee replacement surgery. Preoperative blood tests reveal a platelet count of 64 × 109/L. The surgery is postponed, and the platelet count is repeated two days later when it is 48 × 109/L. All other labs appear normal and the platelet estimate on the peripheral smear correlates with the decreased platelet count. Based on this information, what is the most likely diagnosis?
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