After PCI, aspirin should be continued indefinitely at a dose of 81 mg to 325 mg daily.13,39,47 (Class I, Level of Evidence: B) 2. Aspirin should be continued indefinitely. The maintenance dose should be 81 mg daily in patients treated with ticagrelor and 81 mg to 325 mg daily in all (Class I, Level of Evidence: A) ACC indicates American College of Cardiology; ACCF, American College of Cardiology Foundation; AHA, American Heart Association; AMI, acute myocardial infarction; MI, myocardial infarction; PCI, percutaneous coronary intervention; and STEMI, ST-elevation myocardial infarction. Appendix A. Continued 18 Short Title: PM-3: Beta Blocker at Discharge PM-3: AMI: Beta Blocker Prescribed at Discharge Measure Description: Percentage of patients, age 18 y, hospitalized with AMI, who are prescribed a beta blocker at hospital discharge. Numerator Patients with AMI who are prescribed a beta blocker* at hospital discharge *Appropriate beta blockers to be used in patients with AMI and LVSD are: bisoprolol, carvedilol, extended-release metoprolol. 