Which agents provide MRSA coverage when treating hospital-acquired pneumonia?

Which agents provide MRSA coverage when treating hospital-acquired pneumonia?

• A. Vancomycin or linezolid
• B. Aztreonam
• C. Amikacin
• D. Ceftriaxone

Answer: (A)

In hospital-acquired pneumonia, MRSA coverage is needed when MRSA is suspected or prevalence is high, and the antibiotics with reliable MRSA activity in this setting are vancomycin and linezolid. Aztreonam targets gram-negative bacteria, including Pseudomonas, but does not cover MRSA. Amikacin is an aminoglycoside that also mainly covers gram-negative organisms and lacks MRSA coverage. Ceftriaxone is a cephalosporin with broad Gram-positive and Gram-negative activity but does not reliably cover MRSA. Therefore, vancomycin or linezolid are the appropriate choices for MRSA coverage in this scenario.

In hospital-acquired pneumonia, MRSA coverage is needed when MRSA is suspected or prevalence is high, and the antibiotics with reliable MRSA activity in this setting are vancomycin and linezolid. Aztreonam targets gram-negative bacteria, including Pseudomonas, but does not cover MRSA. Amikacin is an aminoglycoside that also mainly covers gram-negative organisms and lacks MRSA coverage. Ceftriaxone is a cephalosporin with broad Gram-positive and Gram-negative activity but does not reliably cover MRSA. Therefore, vancomycin or linezolid are the appropriate choices for MRSA coverage in this scenario.