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16 Cards in this Set
- Front
- Back
what are the r/f developing dysrhythimas
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electrolyte abnorm
FVD/E hypoxemia altered body temp degenerative changed in conductive system congenital defects myocardial ischemia/ infarction drug toxicity |
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abrupt onset and termination
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paroxysmal
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characteristics of SVT
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paroxysmal
>180bpm PAC may trigger P wave misshappen or hidden in QRS normal QRS regular rhythm ectopic focus above bifurcation of BHIS |
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clinical associations with SVT
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overexertion
emotional stress stimulants AV block or WPW digitalis toxicity rheumatic heart disease CAD cor pulmonale |
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tx for SVt
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vagal maneuvers
IV adenosine verapamil |
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what is done with SVT if vagal maneuver and drup therapy is ineffective
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direct current cardioversion
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has a very short half life
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adenosine
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method to give adenosine
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6 mg rapid IV push followed by 20 ml NS bolus
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what should be done if the first dose of adenosine did not work
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wait 1-2 minutes and give 12 mg rapid iv push followed by NS bolus
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what are the side effects of adenosine
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flushing
chest pain chest tightness brief asystole bradycardia |
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contraction originating from ectopic focus in atrium in location other than SA node
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PAC
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PAC can results from what
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emotional stress
use of caffiene/tobacco/ETOH hypoxia drugs electrolyte imbalances COPD valvular disease |
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TX for PAC
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B adrenergic blockers
diltiazem propafenone amiodarone flecainide clonidine magnesium reduce or eliminate caffiene |
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recurring, regular, saw tooth shaped flutter waves
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atrial tachydysrhythmia
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atrial flutter characteristics
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saw tooth waves
rate 250-350 from single ectopic focus vent rate reg or irregular QRS is normal |
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risk with atrial flutter
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decreased CO and precipitate HF, angina
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