A pediatric nurse is providing inpatient care for a child who was diagnosed with necrotizing otitis externa. The child is currently being treated with ciprofloxacin. What microorganism is the most likely cause of this child's infection?
A) Aspergillus
B) Candida albicans
C) Pseudomonas aeruginosa
D) Escherichia coli
C
Feedback:
Health care providers use ciprofloxacin for the treatment of Pseudomonas aeruginosa in patients with necrotizing otitis externa. If the causative agent is Aspergillus, amphotericin B is the drug of choice. E. coli and Candida are not typically implicated in cases of necrotizing otitis externa.
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