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Cardio I Med Surg

QuestionAnswer
medication class that inhibits platelet activation, adhesion or pro-coagulant activity. Used for tx of CAD antiplatelets
med class that relaxes smooth muscle in blood vessel walls, produces vasodilation, reduces O2 consumption of myocardium, preload/afterload reduction. Used for tx of CAD nitrates
med class that prevents movement of extracellular calcium into cell. dilates peripheral arteries, decreases myocardial contractility, depressed conduction system. decreases workload of <3 calcium channel blockers
med class - causes decrease in HR, B/P, cardiac output, supresses renin activity, decrease myocardial contractility and O2 demand beta blockers
amount of blood pumped/ejected from ventricle in 1 minute cardiac output
amount of blood pumped out of heart each minute stroke volume
formula for cardiac output stroke volume x heart rate = CO
cardiac enzyme that measures for myocardial muscle injury and timing of infarction CPK-MB Creatine Phosphokinase
CPK-MB enzyme levels elevated 4-6 hours after infarction, 12-24 peak elevation, 48-72 hours returns to normal
cardiac enzyme test - elevated 8-12 hours after infarction, peaks 3-4 days, returns to normal 10-14 days, useful if dx and tx delayed LDH (lactic dehydrogenase)
progressive disease leading to narrowing/occlusion of coronary arteries CAD coronary artery disease
protein only found in cardiac cells, highly sensitive indicator of myocardial damage Troponin
Troponin levels levels rise 3-6 hours from onset of sx, peak in 24 hours, remain in system up to 2 wks
"fab four" meds for tx of unstable angina antiplatelets, statins, ACEIs, beta blockers
occurs when new branches grow from existing arteries to provide increased blood flow to damaged myocardial tissue collateral circulation
percutaneous transluminal coronary angioplasty (PTCA) baloon tip catheter is placed thru a peripheral artery into occluded coronary artery, balloon then inflated to compress atherosclerotic plaque and dilate artery
coronary artery bypass graft surgery (CABG) pts own vein/artery used to bypass occluded vessels. internal mammary artery or saphenous veins used for bypass
type of angina caused by coronary artery spasms variant (Prinzmetal's) angina
type of med that blocks production of angiotension II, a vasoconstrictor, reduces peripheral arterial resistance and lowers BP angiotensin-converting enzyme inhibitors (ACEIs)
how do statins lower cholesterol levels reducing cholesterol production in liver
ischemia inadequate blood supply
myocardial infarction obstruction of coronary artery or one of its branches
collateral circulation occurs when new branches grow from existing arteries to provide increased blood flow after MI
test that determines effectiveness of heparin PTT
test that determines effectiveness of coumadin INR
which side of heart usually fails first left
cor pulmonale right ventricle fails b/c of increased pulmonary pressures, enlargement of R side of heart
side of heart failure that causes pulmonary edema (right or left) left sided HF
side of heart failure that causes jugular vein distention, peripheral edema, ascites right sided HF
classic symptom of pulmonary edema pink, frothy sputum
Created by: 1469838250