60: Can patients with heart pain and elevated cardiac markers begin thrombolytic therapy for myocardial infarction (MI)?Can streptokinase be given regardless of changes in the electrocardiogram (ECG)? Some books say that ST elevation must be present. Question 61: Can an elderly patient who had a recent myocardial infarction and developed left ventricular failure use carvedilol, or should they wait until the condition becomes stable? Question 62: I've seen some people with chronic rheumatic heart disease who didn't seem to have rheumatic fever (they didn't remember if they had a severe infection with fever and joint pain afterwards).So, how exactly does chronic rheumatic heart disease actually get diagnosed?Question 63: Should a young patient who presents with hemiparesis and rheumatic atrial fibrillation, is already taking an oral anticoagulant, has a normal computed tomography (CT) scan two hours after the onset, and has an international normalized ratio (INR) of 3?Should oral anticoagulants be combined with aspirin in the future, or should the target INR be raised? Question 64: Why doesn't a thrombus form at the site of the atrial septum or the commissure between the valve leaflets when balloon valvotomy is used to treat mitral stenosis? Cardiovascular disease 13 127 Question 66: Why is the mitral valve more affected than any other valve in the heart in the majority of valvular diseases? Why does a mitral stenosis produce a loud S1? What exactly is William's syndrome, also known as supravalvular obstruction?Why does this syndrome result in hypercalcaemia? Question 68: Please provide me with a list of all possible explanations for the collapsed pulse seen in aortic regurgitation. Is pulmonary hypertension brought on by pulmonary stenosis? Question 70: Under what circumstances would a pulsatile liver occur, and what are the clinical implications of this condition