1. What is the basic underlying pathophysiology involved in angina pectoris? a. Myocardial oxygen demands exceeds the myocardium's oxygen supply b. One or more of the coronary arteries becomes totally occluded c. Impaired cardiac output results in decreased cardiac perfusion d. Hypotension reduces cardiac perfusion 2. What is the MOST frequent cause of death within the first 24 hours after a myocardial infarction? a. congestive heart failure b. arrhythmias c. cerebrovascular accident d. thromboembolism 3. How is diagnosis of myocardial infarction confirmed? a. ECG changes and elevation of cardiac enzymes b. Pancytopenia c. Pattern and severity of pain d. Cardiac catheterization 4. Select the term which best describes an infectious process that affects the outermost layer of the heart. a. Angina b. Endocarditis c. Pericarditis d. Myocarditis