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When to use Beta Blockers in the MI patient


- Discussion: 
- for patients with Q wave infarcts B. blockers are helpful when the following conditions apply: (assuming no contraindications) 
- all patients > 60 yrs; 
- all patients who exhibit ischemia on excercise; 
- patients with abnormal left ventricular function; (? < 45%) 
- patients who require B. blockers for rest Angina or HTN 
- patients who have experienced an episode of sustained V. Tach or Sustained V. fib or had in hosp. Cardiac arrest; 
* In patients who do not tolerate Beta blockers, consider switching to diltiazem or Verapamil