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Difficulty: EasyPediatric Infectious Diseases

A 10-month-old boy is brought to the clinic by his parents due to fever, irritability, and crying when laid down to sleep. The symptoms began 2 days ago following a mild viral upper respiratory tract infection. His temperature is 39.1°C (102.4°F), heart rate is 130/min, and respiratory rate is 28/min. Otoscopic examination reveals bulging, intensely erythematous tympanic membranes bilaterally with absent mobility on pneumatic otoscopy. He has no known medical conditions, takes no daily medications, and has no known drug allergies. He has not received any antibiotics since birth. Which of the following is the most appropriate next step in management?

  1. Oral amoxicillinAnswer
  2. B
    Oral amoxicillin-clavulanate
  3. C
    Oral azithromycin
  4. D
    Topical ciprofloxacin
  5. E
    Reassurance and clinical observation

Answer

Oral amoxicillin
The correct management for acute otitis media (AOM) in a 10-month-old child with severe symptoms (fever ≥ 39.0°C) and bilateral disease is the immediate initiation of oral amoxicillin. Amoxicillin provides excellent coverage against Streptococcus pneumoniae, the most common bacterial pathogen in AOM, and maintains a narrow spectrum to prevent unnecessary antimicrobial resistance.

Step-by-Step Solution

1
Evaluate the patient's clinical presentation and age.
The patient is a 10-month-old infant presenting with high fever (39.1°C) and bilateral bulging, erythematous tympanic membranes.
Current guidelines dictate that infants under 24 months with bilateral acute otitis media or severe symptoms require immediate antibiotic therapy rather than observation.
2
Select the most appropriate first-line pharmacological agent.
Oral amoxicillin is chosen.
Amoxicillin provides targeted coverage against Streptococcus pneumoniae (the most common bacterial cause) and is the first-line agent for patients with no recent antibiotic use, no concurrent purulent conjunctivitis, and no penicillin allergy.

Key Concept

First-line management of acute otitis media in infants
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Topics

Pediatric Infectious Diseases

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