You respond to a patient who presents with shortness of breath after he took a dose of an antibiotic. You find your patient with audible stridor and urticaria. You should administer:

Question

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The patient is showing signs of anaphylaxis (audible stridor and urticaria) after taking an antibiotic, which is a life-threatening allergic reaction. The first-line treatment for anaphylaxis is intramuscular (IM) epinephrine 1:1000 at a dose of 0.3-0.5 mg. This route is preferred over subcutaneous (SQ) because it provides a more rapid absorption and onset of action, which is critical in reversing the symptoms of anaphylaxis.

You Respond to a Patient Who Presents with Shortness of Breath