| A | B |
|---|
| zone of infarction leads to changes on ekg | pathologic Q waves |
| EKG changes in AMI due to zone of infarction due to | lack of depolarization inaffected cells |
| zone of injury | tissue still viable but distressed, cells partially depolarizing |
| EKG changes due to zone of injiry | elevated ST segments (1mm) |
| zone of ischemia shows | T wave tall or inverstion, ST segment depression 1mm |
| types of AMI | transmural, nonQ wave |
| ttransmural MI | all3 layers of heart, Q waves & st elevations |
| nonQ waves | due to microemboli; only 1 layer involved |
| pathological Q wave | > 1/3 ht. r wave & higher than nl |
| injury ekg changes | st elevation, t wave inversion |
| acute infarct ekg changes | st elevated, t wave inversion, abnl q wave |
| infarct, age unknown | Q waves, but st changes back to normal |
| RCA Left ventricular AMI | post/inferior |
| LCA Left ventricular AMI | massive anterolateral |
| LAD Left ventricular AMI | anteroseptal |
| L. circumflex Left ventricular AMI | lateral |
| Ant MI due to | occl of LAD LCA |
| EKG changes Ant MI | V2-V4 st segment elevation |
| Anteroseptal MI due to | LAD occlusion |
| Ekg changes anteroseptal MI | V1-V3, possible V4 |
| Lg. anterior wall MI leads to | l ventricular failure, cardiogenic shock, death |
| Lg. anteroseptal MI leads to | 3rd degree av block, bundle branch block, pacemaker common |
| Anterolateral MI | occ l circumflex |
| EKG changes anterolateral MI | Q waves & ST changes in I, avl, V3-V6 |
| Inferior wall MI | occlusion of distal rca (possible r. vent involvement) |
| IWMI ekg changes | II, III, avF |
| IWMI leads to | AV conduction problems common; 1st & 2nd degree blocks common |
| Post wall MI | occlusion of distal circumflex or RCA |
| Post wall MI ekg changes | reciprocal changes V1-V4 (st depression) |
| R. ventricular MI | occlusion to blockage of prox rca |
| R. ventricular MI causes | r. heart failure |
| 6 hr MI damage | distended, pale, cyanotic myocardium |
| 2 days MI damage | red, purple, exudate; wbc's start necrotic cleanup; wall thinned |
| 3-4 week MI damage | wall thiocker & white, scarred |
| pain relilef n MI | morphine, ntg & oxygen |
| improving perfusion on MI | ASA, thrombolytics within 6 hrs, anticoagulants, b blockers, ca ch blockers |
| tx of brady, hypotension dec. co in MI's | atropine |
| persistent bradycardia after MI | prep for pacemaker |
| sinus tachycardia more common in | ant mi's 1 |
| atrial fibrillation common in | ant mi's 2 |
| av block more frequent with | IWMI |
| use amiodarone if you have these: | frequent pvcs, closely coupled r on t, multiform pvc's, salvo's |
| PHase I cardiac rehab | in hospital |
| Phase 2 cardiac rehab | immediate outpatient |
| Phase 3 ;cardiac rehab | intermediate oupt. 4-6 mos. |
| Phase 4 cardiac rehab | maintenance outpt. |
