Combined hemotology IV
A 24-year-old woman presents to the emergency room complaining of a red, tender rash that has been spreading across her arms and legs over the past 2 days. She also describes severe diffuse muscle pain that has worsened over a week’s time. She woke up feeling as though she could not catch her breath and has developed a dry cough over the past several days. She is without any significant medical history but recalls that she had similar symptoms several years ago, and was told she was having an allergic reaction. Her symptoms abated with an oral glucocorticoid taper. She takes no prescription medications but takes a number of over-the-counter nutritional supplements daily. She cannot describe any allergic trigger to her previous episode or her current one. Her family history is unremarkable, and her close contacts are not ill. She works in an office, has no pets, and has not travelled internationally. Her laboratory results are remarkable for a leukocyte count of 12,100 cells/ µL and a total eosinophil count of 1100/µL. Which of the following is the most likely cause of her symptoms?
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