| A | B |
|---|
| Myocardial infarction | when prolong total occlusion of CA blood flow |
| 2 types of MI | transmural infarction - subendocardial infarction |
| transmural infarction - Q-wave | entends thru full thickness of myocardial wall |
| subendocardial - nonQ-wave | entends partial thickness of myocardial |
| most common cause of MI | coronary thrombosis - blood clot in coronary |
| problems (2) most common after MI | dysrhythmias and HF |
| damaged cells release enzymes n 2 blood stream | cardiac markers |
| cardiac markers (6) | myoglobin, troponin T troponin I CK-MB AST LDH |
| collateral circulation re: MI | new capillaries begin to grow 2-3 weeks |
| cardiac patch | collagen fibers grow w/n 2 weeks |
| MI complications after | dysrhymias, cardiogenic shock, ventribular rupture or aneurysem |
| MI s/s | pale, clammy, NV, pulse weak, rapid, irregular, cough dyspnea |
| biggest test to confirm MI | troponin - healthy person will not have elevated |
| MI treatment | relieve pain, provide ox, restore blood flow, platelet aggregation |
| M O N A | morphine, ox, nitro, asa |
| MI Treatment PCTA | balloon angioplasty - 2 hr w/sx |
| MI Treatment Thrombolytic Therapy | clot busters, IV drugs t-PA 2hrs onset |
| MI surgical treatment | CABG - Coronary artery bypass |
| Education for pt | lifestyle, no smoke, excercise, low cholesteral, low stress |
| MI meds | asa, antiplatelet, hypertension |
