Question 99 · LEK · Urinary tract infections

Which pathogen is the most common cause of community-acquired urinary tract infections?

  1. A. Escherichia coli.
  2. B. Proteus mirabilis.
  3. C. Klebsiella pneumoniae.
  4. D. Serratia marcescens.
  5. E. Pseudomonas aeruginosa.
Hint

Think of the gut-derived Gram-negative rod responsible for the large majority of uncomplicated cystitis and pyelonephritis.

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