EXAM 1: Acute Coronary Syndrome questions with correct answers

In what two ways does coronary perfusion differ from that of the rest of the body? - Answer -timing: it occurs during diastole -O2 extraction: is maximal at all times What range of conditions are included in Acute Coronary Syndrome? - Answer Unstable Angina, NSTEMI, STEMI In most people, occlusion of the Right Coronary Artery may produce ischemia of what portion(s) of the conduction system? - Answer sinus node & AV node What physiologic event produces ACS in the vast majority of cases? - Answer plaque rupture/erosion ST Segment depression and/or T wave inversion indicate which of the following? - Answer myocardial ischemia What ECG change indicates myocardial injury? - Answer ST elevation You are monitoring your patient in Lead II. You notice ST segment depression. You immediately go to the room to assess your patient because you know this ECG change may be indicative of which of the following? - Answer myocardial ischemia in the inferior wall What ECG change requires immediate intervention because it is indicative of an acute myocardial infarction in progress? - Answ