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EXAM 1 DYSRHYTHMIAS (NCLEX) QUESTIONS AND ANSWERS.
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EXAM 1 DYSRHYTHMIAS (NCLEX) QUESTIONS AND ANSWERS.
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EXAM 1: DYSRHYTHMIAS (NCLEX)QUESTIONS AND ANSWERS
A vclient's velectrocardiogram vstrip vshows vatrial vand vventricular vrates vof v80 vcomplexes
vper vminute. vThe vPR vinterval vis v0.14 vsecond, vand vthe vQRS vcomplex vmeasures v0.08
vsecond. vThe vnurse vinterprets vthis vrhythm vis:
A) vNormal vsinus vrhythm
B) vSinus vbradycardia
C) vSinus vtachycardia
D) vSinus vdysrhythmia v- vCorrect vAnswer v- vA
A vclient vhas vfrequent vbursts vof vventricular vtachycardia von vthe vcardiac vmonitor. vA vnurse
vis vmost vconcerned vwith vthis vdysrhythmia vbecause:
A) vIt vis vuncomfortable vfor vthe vclient, vgiving va vsense vof vimpending vdoom.
B) vIt vproduces va vhigh vcardiac voutput vthat vquickly vleads vto vcerebral vand vmyocardial
vischemia.
C) vIt vis valmost vimpossible vto vconvert vto va vnormal vsinus vrhythm.
D) vIt vcan vdevelop vinto vventricular vfibrillation vat vany vtime. v- vCorrect vAnswer v- vD
Ventricular vtachycardia vis va vlife-threatening vdysrhythmia vthat vresults vfrom van virritable
vectopic vfocus vthat vtakes vover vas vthe vpacemaker vfor vthe vheart. vThe vlow vcardiac voutput
vthat vresults vcan vlead vquickly vto vcerebral vand vmyocardial vischemia. vClient's vfrequently
vexperience va vfeeling vof vimpending vdeath. vVentricular vtachycardia vis vtreated vwith
vantidysrhythmic vmedications vor vmagnesium vsulfate, vcardioversion v(client vawake), vor
vdefibrillation v(loss vof vconsciousness), vVentricular vtachycardia vcan vdeteriorate vinto
vventricular vdefibrillation vat vany vtime.
The vnurse vadministers vamiodarone v(Cordarone) vto va vclient vwith vventricular vtachycardia.
vWhich vmonitoring vby vthe vnurse vis vnecessary vwith vthis vdrug? vSelect vall vthat vapply.
a. vRespiratory vrate
b. vQT vinterval
c. vHeart vrate vand vrhythm
d. vMagnesium vlevel
e. vUrine voutput v- vCorrect vAnswer v- vBCD
Amiodarone vcauses vprolongation vof vthe vQT vinterval, vwhich vcan vprecipitate vdysrhythmia.
vAntidysrhythmic vmedications vcause vchanges vin vcardiac vrhythm vand vrate; vtherefore
vmonitoring vof vheart vrate vand vrhythm vis vneeded.Electrolyte vdepletion, vspecifically
vpotassium vand vmagnesium, vmay vpredispose vto vfurther vdysrhythmia. vAlthough vit vis
valways vimportant vto vmonitor vvital vsigns vand vurine voutput, vthese vassessments vare vnot
vspecific vto vamiodarone.
, The vnurse vis vcaring vfor va vclient vwith vacute vcoronary vsyndrome v(ACS) vand vatrial
vfibrillation vwho vhas va vnew vprescription vfor vmetoprolol v(Lopressor). vWhich vmonitoring vis
vessential vwhen vadministering vthe vmedication?
a. vST vsegment
b. vHeart vrate
c. vTroponin
d. vMyoglobin v- vCorrect vAnswer v- vB
The veffects vof vmetoprolol vare vto vdecrease vheart vrate, vblood vpressure, vand vmyocardial
voxygen vdemand. vST vsegment velevation vis vconsistent vwith vMI; vit vdoes vnot vaddress
vmonitoring vof vmetoprolol. vElevation vin vtroponin vis vconsistent vwith va vdiagnosis vof vMI vbut
vdoes vnot vaddress vneeded vmonitoring vfor vmetoprolol. vElevation vin vmyoglobin vis
vconsistent vwith vmyocardial vinjury vin vACS vbut vdoes vnot vaddress vneeded vmonitoring
vrelated vto vmetoprolol.
The vnurse vis vcaring vfor va vclient vwith vatrial vfibrillation. vIn vaddition vto van vantidysrhythmic,
vwhat vmedication vdoes vthe vnurse vplan vto vadminister?
a. vHeparin
b. vAtropine
c. vDobutamine
d. vMagnesium vsulfate v- vCorrect vAnswer v- vA
Clients vwith vatrial vfibrillation vare vprone vto vblood vpooling vin vthe vatrium, vclotting, vthen
vembolizing. vHeparin vis vused vto vprevent vthrombus vdevelopment vin vthe vatrium vand vthe
vconsequence vof vembolization v(i.e., vstroke).
The vnurse vis vcaring vfor va vclient von va vtelemetry vunit vwith va vregular vheart vrhythm vand vrate
vof v60; va vP vwave vprecedes veach vQRS vcomplex, vand vthe vPR vinterval vis v0.24 vsecond.
vAdditional vvital vsigns vare vas vfollows: vblood vpressure v118/68, vrespiratory vrate v16, vand
vtemperature v98.8° vF. vThe vfollowing vmedications vare vavailable von vthe vmedication
vrecord. vWhat vaction vshould vthe vnurse vtake?
a. vAdminister vatropine.
b. vAdminister vdigoxin.
c. vAdminister vclonidine.
d. vContinue vto vmonitor. v- vCorrect vAnswer v- vD
The vclient vis vdisplaying vsinus vrhythm vwith vfirst-degree vatrioventicular vheart vblock; vthis vis
vusually vasymptomatic vand vdoes vnot vrequire vtreatment. vAtropine vis vused vin vemergency
vtreatment vof vsymptomatic vbradycardia. vThis vclient vhas vnormal vvital vsigns. vDigoxin vis
vused vin vthe vtreatment vof vatrial vfibrillation, vwhich vis, vby vdefinition, van virregular vrhythm.
vClonidine vis vused vin vthe vtreatment vof vhypertension; va vside veffect vis vbradycardia.
You vare vthe vcharge vnurse von vthe vtelemetry vunit vand vare vresponsible vfor vmaking vclient
vassignments. vWhich vclient vwould vbe vappropriate vto vassign vto vthe vfloat vRN vfrom vthe
vmedical-surgical vunit?
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