Cardiac Dysrhythmias part 2 Questions with 100% Verified Correct Answers 1st Heart Block characteristics - Correct Answer -prolong PR interval >.20 on EKG.-pt. asymptomatic 1st Heart Block causes - Correct Answer MI, CAD, rheumatic fever, hyperthyroid, electrolyte, vagal stimulation, drugs (dig, BETAS, CCB's, Flecainide) 1st Heart Block treatments - Correct Answer no tx. monitor for changes 2nd Heart Block Type 1 characteristics - Correct Answer -PR interval progressively gets longer until QRS drops, then repeat -going, goingg, goinggg, gone 2nd Heart Block Type 1 causes - Correct Answer -dig and Betas -after heart attack -CAD -other cardiac issues 2nd heart block type 1 treatment - Correct Answer -atropine -temp pacemaker if had MI 2nd heart block type 1 pt teach - Correct Answer s/s- fatigue, SOB, dizzy, confused, decreased cardiac output -may be asymptomatic -may progress to 2nd 2nd heart block type II characteristics - Correct Answer -PR interval constant but QRS complex drop every 2nd, 3rd, or 4th beat or vary 2nd heart block type II causes - Correct Answer - rheumatic heart disease -CAD -anterior MI 1 / 2
-drug toxicity (Prodysrythmias) 2nd heart block type II treatment - Correct Answer -temp pacemaker, or permanent pacemaker if pt.symptomatic (hypotension, angina) 2nd heart block type II pt teaching - Correct Answer 2:1 block worse then a 4:1 block.-pt symptomatic due to decreased HR -may progress to 3rd 3rd heart block characteristics - Correct Answer -No correlation between atrial and ventricular contraction (P&QRS) -Wide QRS complex coming from ventricles 3rd heart block causes - Correct Answer -heart disease -CAD and MI -myocarditis -cardiomyopathy -amyloidosis and scleroderma -meds (dig, B blockers, CCB's) 3rd heart block treatments - Correct Answer -need pacemaker -atropine, dopamine, epi until pacemaker is in Premature Ventricular Contractions - Correct Answer -wide, disorter occurs early before next scheduled beat.-ecotopic beat which comes from ventricle PVC causes - Correct Answer -caffeine, alcohol, nicotine, aminophylline, epi, dig, isoproterenol, electrolyte imbalance, hypoxia, fever, exercise, heart disease PVC treatment - Correct Answer -check MOP (magnesium, oxygen, potassium) -Betas, Procainmide (pronestyl), or Amiodarone
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