322 Exam 2 Word Scramble
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| Term | Definition |
| digoxin | cardiac glycoside that inhibits the sodium potassium pump resulting in an increased intracellular sodium |
| mode of action digoxin | increases myocardial contractility, enhances cardiac output, decreases preload, improves blood flow to periphery and kidneys, decreases edema and promotes fluid excretion |
| positive inotropic | increases myocardial contractility |
| negative chronotropic | decrease HR |
| negative dromotropic | decreases the conduction speed of the impulses from the SA node to the AV node |
| phosphodiesterase inhibitors | cardiotonic inotropic agents; increase stroke volume and cardiac output which promotes vasodilation |
| antianginal drugs | nitrates, beta blockers, calcium channel blockers |
| nitrates, nitroglycerin | promotes rapid and generalized vascular and coronary vasodilation increasing blood flow to the heart |
| nitroglycerin | decrease preload and after load, reduces myocardial oxygen demand |
| beta blockers | block action of catecholamines, decrease HR and BP; decrease workload of heart and oxygen demands which decreases force of contraction |
| calcium channel blockers | relax coronary artery spasm, relax peripheral arterioles, decrease cardiac contractility, decrease after load and peripheral resistance |
| digoxin toxicity | anorexia, nausea and vomiting, headache, malaise, blurred vision, halos surrounding objects, confusion and delirium, bradycardia |
| antidote for digoxin toxicity | digoxin immune fab; binds with digoxin to form complex molecules that can be excreted in the urine |
| side effects of nitroglycerin | headache, hypotension, fluching |
| route of nitroglycerin | sublingual, 1 dose every 5 minutes, 3 doses max |
Created by:
ahommel
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