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Hypersensitivity Reactions Practice Test
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Q1
A 60-year-old woman develops petechiae and gingival bleeding 5 days after starting trimethoprim-sulfamethoxazole; platelets are 8,000/µL and hemoglobin is normal. What type of hypersensitivity reaction is most likely responsible?
A 60-year-old woman develops petechiae and gingival bleeding 5 days after starting trimethoprim-sulfamethoxazole; platelets are 8,000/µL and hemoglobin is normal. What type of hypersensitivity reaction is most likely responsible?