Dental In a child with a pre-existing cardio valvular disease, antibiotic prophylaxis should be administered before a dental extraction so as to prevent: A Bacterial endocarditis B Congestive cardiac failure C Pneumonia D Rheumatic carditis 💡 Explanation In a child with a pre-existing cardio valvular disease, antibiotic prophylaxis should be administered before a dental extraction so as to prevent: ✓ Correct Answer: A. Bacterial endocarditis