A 33-year-old man with a mechanical aortic valve is scheduled for dental extraction. He has no penicillin allergy. According to current Australian infective endocarditis prophylaxis recommendations, what is the most appropriate management?ANo antibiotic prophylaxis is recommended for any dental proceduresBOral amoxicillin 2 g 1 hour before the procedureCOral cephalexin 250 mg daily for 5 days after the procedureDIntravenous vancomycin before and after the procedureELifelong oral penicillin twice dailyCheck my answer