June 21, 2010

MRCP 1 Question 2

Hospitalized immunocompromised patients are at risk for pneumonias.

Which of the following would represent such a nosocomial pneumonia.

a) P carinii
b) Nocardia spp
c) M avium-intracellulare
d) Pseudomonas aeruginosa
e) Staphylococcus aureus




ANSWERS
The correct answer is D

Explanation

Hospitalized immunocompromised patients are at risk for nosocomial pneumonias, half of which are caused by anaerobic gram-negative bacilli, including:
  • Pseudomonas aeruginosa,

  • Enterobacter species,

  • Klebsiella species,

  • Escherichia coli, and

  • Acinetobacter specie

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