clar697
Forum Guru
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A 70-year-old man is brought to the emergency department because of fever, cough productive of blood-tinged sputum, and shortness of breath for 12 hours. His temperature is 39.5C (103.1F), and respirations are 36/min. Crackles are heard at the right lung base. Culture of sputum grows alpha-hemolytic, gram-positive diplococci. Which of the following characteristics of the causal organism best explains the development of pneumonia in this patient?
A) Expression of the polysaccharide capsule
B) Intracellular survival in macrophages
C) Production of endotoxin
D) Production of potent ADP-ribosylating exotoxin
E) Production of superantigen
I chose A. Dx is Streptococcus pneumonia. Rx penicillin, or vancomycin is resistance is present.
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| jorgefhoyos
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A
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| supra
Forum Elite
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A
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