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14 Cards in this Set

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what is one of the most common diagnosis that can be made with cvp waveforms?
rapid diagnosis of cardiac arrhythmias
describe waveform in atrial fibrilation
a wave dissappears, c wave more prom b/c atrial vol is greater at end-diast and onset sys b/c no effec atrial contrac.
describe atrioventricular dissociation/
cannon a wave,
what causes cannon a wave in artroventricular dissociation/tricuspid regurgitation?
atrial contraction happens during ventricular sustole, when tricuspid valve is closed
what is the physiological effect of tricuspid regurgitation?
abnormbal systolic filling of rt atrium through incompetent valve
describe wave form of tricuspid regurgitation
tall c-v wave that obliterates x decent
describe wave form in tricuspid stenosis
tall a wave, attenuation of y descent
which two conditions cause eleveation of mean CVP?
tricuspid stenosis, tricuspid regurgitation
what is one of the most important applications of CVP monitoring?
provide an esteimate of the adequacy of circulating blood volume and right ventricular preload
what happens to cvp measured relative to atmospheric ressure and transmural pressure in inspir.
cvp measured compared to atmos. pressure decr; transmural increases some as more blood drawn into rt atrium
what is transmural cvp?
diff between right atrial pressure and juxtacardiac pressure
what happens to measured cvp and transmural cvp during positive pressure vent?
measured cvp raised b/c inc. intrahoracic press; transmural cvp decreases b/c reduced venous return frm intrathor.prs.
which value is close to transmural cvp?
end-expiratory value for cvp
uses of cvp
circulation, fluid, blood loss