Check out today’s Step 2 CK Qmax Question Challenge.
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A 2-year-old boy is brought to the clinic for evaluation after 2 days of low-grade tactile fever, irritability, and decreased activity. His mother reports that on waking him this morning, his pillow was stained with a small amount of yellow fluid. His heart rate is 92/min, blood pressure is 104/70 mm Hg, respiratory rate is 22/min, and temperature is 38.8°C (101.°F). His external ear canal is normal, and his otoscopic examination is shown in the image.
Which of the following is the most likely bacterial pathogen implicated in this condition?
A. Haemophilus influenzae type B
B. Neisseria meningitidis
C. Pseudomonas aeruginosa
D. Staphylococcus aureus
E. Streptococcus pneumoniae
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