system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 58-year-old man comes to the physician because of a sore throat and painful lesions in his mouth for the past few days. Six weeks ago, he underwent cardiac catheterization and stent implantation of the left anterior descending artery for treatment of acute myocardial infarction. Pharmacotherapy with dual antiplatelet medication was started. His temperature is 38.1°C (100.6°F). Oral examination shows several shallow ulcers on the buccal mucosa. Laboratory studies show:
Hematocrit 41.5%
Leukocyte count 1,050/mm3
Segmented neutrophils 35%
Platelet count 175,000/mm3
Which of the following drugs is most likely responsible for this patient's current condition?"
assistant
Ticlopidine