A patient post-coronary artery bypass graft (CABG) develops mediastinitis. Which organism is most likely implicated?

A patient post-coronary artery bypass graft (CABG) develops mediastinitis. Which organism is most likely implicated?

  • Correct Answer: Staphylococcus aureus
  • Pseudomonas aeruginosa
  • Escherichia coli
  • Candida albicans

Explanation: Staphylococcus aureus is the most common cause of mediastinitis post-CABG due to surgical site contamination.

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