A 35-year-old woman is brought to the emergency department by her husband due to a sudden onset of severe shortness of breath, facial swelling, and a diffuse rash. The symptoms began abruptly while they were eating at a seafood restaurant 20 minutes ago. On arrival, the patient is lethargic, extremely restless, and gasping for air. Blood pressure is 70/40 mmHg, heart rate is 138/min, and respiratory rate is 32/min. Oxygen saturation is 86% on room air. Physical examination reveals marked angioedema of the lips and tongue, prominent inspiratory stridor, and diffuse bilateral wheezing. Her skin is warm and erythematous with widespread urticaria. Which of the following are the most appropriate immediate steps in the stabilization of this patient? (Select all that apply)
- Endotracheal intubationCevap
- Intramuscular administration of epinephrineCevap
- CIntravenous administration of diphenhydramine
- DObtaining a standard 12-lead electrocardiogram
- EApplication of non-invasive positive pressure ventilation