A 29-year-old man with a mechanical aortic valve is due to have a dental extraction. He is concerned about infective endocarditis and asks whether he needs antibiotic prophylaxis before the procedure. What is the most appropriate advice?AHe should receive amoxicillin 3 g orally 1 hour before the procedureBHe should receive intravenous benzylpenicillin immediately before the procedureCRoutine antibiotic prophylaxis is not recommended for dental proceduresDHe should receive a 5-day course of oral antibiotics starting before the procedureEHe should be admitted for prophylactic intravenous vancomycinCheck my answer