In hospital-acquired pneumonia, what empiric regimen is used to cover both Pseudomonas and MRSA?

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Multiple Choice

In hospital-acquired pneumonia, what empiric regimen is used to cover both Pseudomonas and MRSA?

In hospital-acquired pneumonia, you start empiric therapy that covers both Pseudomonas and MRSA because these pathogens are common and can cause severe illness in this setting. Piperacillin-tazobactam provides strong anti-pseudomonal coverage, while vancomycin has reliable activity against MRSA. Using them together ensures broad initial protection while cultures and susceptibilities are pending, which is crucial since delays in appropriate therapy worsen outcomes. Other regimens fail to meet both needs: amoxicillin lacks Pseudomonas activity; ceftriaxone plus azithromycin doesn’t reliably cover MRSA or Pseudomonas; and levofloxacin alone may cover Pseudomonas but not MRSA.

In hospital-acquired pneumonia, you start empiric therapy that covers both Pseudomonas and MRSA because these pathogens are common and can cause severe illness in this setting. Piperacillin-tazobactam provides strong anti-pseudomonal coverage, while vancomycin has reliable activity against MRSA. Using them together ensures broad initial protection while cultures and susceptibilities are pending, which is crucial since delays in appropriate therapy worsen outcomes. Other regimens fail to meet both needs: amoxicillin lacks Pseudomonas activity; ceftriaxone plus azithromycin doesn’t reliably cover MRSA or Pseudomonas; and levofloxacin alone may cover Pseudomonas but not MRSA.

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