Medical Emergencies · single question
Antibiotic prophylaxis before dental treatment?
32-year-old woman with completely repaired tetralogy of Fallot (no residual defect).
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Correct answer: A. No prophylaxis needed
Completely repaired CHD >6 months ago with no residual defect → no prophylaxis.
- A. Correct. Per AHA guidelines, fully repaired CHD with no residual defect requires prophylaxis only for the first 6 months after repair — not years later.
- B. Indicated only within 6 months of repair or with residual defects.
- C. A penicillin-allergy alternative, but no prophylaxis is indicated here at all.
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