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Pharmacology · single question

A patient with a mitral valve disorder needs dental treatment. Does this patient require antibiotic prophylaxis?

  1. Yes, only for mitral stenosis
  2. No, mitral valve disorders are not on the current AHA list
  3. Yes, all cardiac valve disorders require prophylaxis
  4. Yes, if taking anticoagulants
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Correct answer: B. No, mitral valve disorders are not on the current AHA list

Per 2007 AHA guidelines, mitral valve disorders (prolapse, regurgitation, stenosis) are NOT indications for antibiotic prophylaxis. Only highest-risk conditions require it.
  • A. ❌ Mitral stenosis alone is not an indication.
  • B. ✅ CORRECT – Mitral valve disorders (MVP, MR, MS) are NOT on the current AHA prophylaxis list.
  • C. ❌ The 2007 AHA guidelines significantly narrowed prophylaxis indications.
  • D. ❌ Anticoagulant use does not determine prophylaxis need.

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