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NURS 3365 Pharm ATI Exam Cheat Sheet

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Heart - Failure Digoxin ● (cardiac glycoside●, used to treat ● dysrhythmias and heart failure) ● Therapeutic Levels 0.5-0.8 (Pg. 177) IV digoxin: infuse over AT LEAST 5min. WITHHOLD if ... HR LESS THAN 60/min MUST auscultate apical pulse for one full minute Toxicity: Yellowing vision, blurry vision, anorexia, fatigue, weakness, N/V, GI effects, tinnitus, Narrow therapeutic range Positive inotrope (Increase force and efficiency of myocardial contraction), negative chronotrope (Decrease Heart rate) Hypokalemia leads to toxicity, hyper K leads to decreased effect Treatment is cholestyramine (BAR) or Digibind (FAB) To prevent “Digoxin-induced dysrhythmias, avoid hypokalemia and increased serum digoxin levels Watch for n/v and general weakness. (hypokalemic) and caution with potassium supplements. Avoid any drug that affect potassium (loop diuretics, ACE Inh and ARBs) [Show More]

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