11-24-2007, 05:57 AM
18. An afebrile 2-year-old boy has had right ear pain for 3 days. He has been swimming everyday for the past week. Purulent fluid is draining from the right external ear canal, and manipulation of the pinna is painful. No abnormalities are noted on visualization of tympanic membranes. Which of the following is the most likely causal organism?
O A) Haemophilus influenzae type b
O B) Moraxella catarrhalis
O C) Pasteurella multocida
O D) Pseudomonas aeruginosa
O E) Streptococcus pneumoniae
O A) Haemophilus influenzae type b
O B) Moraxella catarrhalis
O C) Pasteurella multocida
O D) Pseudomonas aeruginosa
O E) Streptococcus pneumoniae