Pharmacology · single question

A patient needing extractions has a cardiac stent. What antibiotic prophylaxis should be given?

  1. No antibiotic prophylaxis necessary
  2. Amoxicillin 2 g 1 hour before
  3. Amoxicillin 1 g 1 hour before
  4. Clindamycin 600 mg 1 hour before
Show answer and explanation

Correct answer: A. No antibiotic prophylaxis necessary

  • A. Correct. Coronary stents are NOT an indication for infective-endocarditis prophylaxis under current AHA/ADA guidelines — no antibiotic premedication is required.
  • B. 2 g amoxicillin is the regimen for patients who DO meet prophylaxis criteria (e.g., prosthetic valves), which a stent patient does not.
  • C. 1 g is not the standard adult prophylactic dose, and prophylaxis isn't indicated anyway.
  • D. Clindamycin 600 mg is the penicillin-allergy alternative, but no prophylaxis is indicated for a stent.

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