Question 14
A 6-year-old child presents to the emergency department with a 4-day history of sore throat, low-grade fever, and difficulty swallowing. On examination, the child has cervical lymphadenopathy, a swollen neck, and a thick, grayish- white membrane covering the tonsils and pharynx that bleeds when attempts are made to remove it. The child is unvaccinated. What is the most appropriate next step in management?