action of beta adrenergic blockers - Answer blockade of myocardial b-adrenergic receptors
uses: ventricular arrhythmias, HTN, angina, MI
class 3: K+ channel blockers example - Answer amiodarone
action of K+ channel blockers - Answer prolongs action potential by delaying K+ efflux
developed bc some pt died from Na+ channel blockers
used for dysrhythmias that are difficult to treat: life-threatening
class 4: calcium channel blockers examples - Answer diltiazem and verapamil
action of calcium channel blockers - Answer slow rate of AV conduction in patients with a-fib
used for paroxysmal SVT; rate control for a-fib and flutter, HTN, angina
Digoxin- other used for arrhythmias - Answer improves strength of cardiac contraction
used for HF and atrial dysrhythmias
monitor potassium levels, drug levels, and for toxicity! Hypokalemia potentiates dig toxicity
can cause yellow vision
, side effects for antidysrhythmics - Answer all antidysrhythmics can cause dysrhythmias
N/V/D, dizziness, blurred vision, headache
nursing measures for antidysrhythmics - Answer obtain drug and medical hx
VS throughout
serum potassium levels before initiating therapy
assess for conditions that may be contraindications
potential drug interactions
instruct pt on schedules and SE to report
monitor well-being, skin color, temp, heart and lung sounds
assess plasma drug levels
monitor for toxic effects: yellow
what should patients who are taking propranolol, digoxin and other agents be taught? - Answer how to
assess radial pulse for 1 min, and notify if pulse is less than 60 bpm before taking next dose
monitoring for therapeutic response - Answer decrease BP in hypertensive pt
decreased edema
regular pulse rate
pulse rate without irregularities
improved regularity of rhythm
stable angina and CAD medications - Answer A. ASA and anti-platelet
B. blood pressure control
C. cholesterol and cigarettes
D. diet and diabetes
E. education and exercise
F. Other
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