DYSRHYTHMIA EAQ QUESTIONS AND CORRECT ANSWERS

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DYSRHYTHMIA EAQ QUESTIONS AND CORRECT ANSWERS

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2025/2026

Institution NURS 4572

Course NURS 4572

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DYSRHYTHMIA EAQ QUESTIONS AND CORRECT ANSWERS

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DYSRHYTHMIA EAQ QUESTIONS AND
CORRECT ANSWERS

WhichA2dysrhythmiaA2isA2causedA2byA2atrialA2irritability?

A.A2AtrialA2fibrillationA2
B.A2PrematureA2atrialA2complexesA2
C.A2SupraventricularA2tachycardiaA2
D.A2PrematureA2ventricularA2complexesA2-A2Ans--B.A2PrematureA2atrialA2complexesA2

PrematureA2atrialA2complexesA2willA2developA2whenA2theA2atrialA2tissueA2becomesA2irritat
ed.A2TheA2ectopicA2focusA2generatesA2impulsesA2beforeA2theA2nextA2normalA2sinusA2impul
se,A2whichA2causesA2palpitationsA2andA2aA2senseA2ofA2theA2heartA2skippingA2aA2beat.A2Atri
alA2fibrillation,A2supraventricularA2tachycardia,A2andA2prematureA2ventricularA2complexesA
2areA2notA2causedA2byA2atrialA2irritability.

WhichA2conditionA2isA2aA2resultA2ofA2aA2hypereffectiveA2heartA2inA2aA2well-
conditionedA2athlete?

A.A2TachypneaA2
B.A2Dysrhythmia
C.A2BradycardiaA2
D.A2CardiacA2arrestA2-A2Ans--C.A2BradycardiaA2

AA2hypereffectiveA2heartA2hasA2aA2strongA2heartA2muscleA2thatA2providesA2anA2adequateA2
strokeA2volumeA2andA2aA2lowA2heartA2rateA2toA2achieveA2aA2normalA2cardiacA2output.A2Bra
dycardiaA2occursA2becauseA2ofA2aA2hypereffectiveA2heartA2inA2aA2well-
conditionedA2athlete.A2AA2dysrhythmiaA2isA2anA2irregularA2heartA2rate.A2TachypneaA2isA2aA
2keyA2featureA2ofA2sustainedA2tachydysrhythmias.A2AA2cardiacA2arrestA2isA2aA2temporaryA2
cessationA2ofA2theA2heart.

WhichA2statementA2correctlyA2differentiatesA2cardioversionA2fromA2defibrillation?

A.A2DefibrillationA2isA2aA2synchronizedA2shockA2deliveredA2toA2depolarizeA2theA2myocardiu
mA2simultaneouslyA2inA2atrialA2fibrillation.A2
B.A2CardioversionA2isA2anA2asynchronousA2shockA2toA2theA2patientA2toA2convertA2ventricul
arA2tachycardiaA2orA2ventricularA2fibrillation.A2
C.A2DefibrillationA2deliversA2anA2electricA2shockA2toA2theA2heart;A2cardioversionA2involvesA
2useA2ofA2aA2temporaryA2pacemakerA2toA2deliveryA2theA2shock.A2
D.A2CardioversionA2deliversA2aA2synchronizedA2shockA2forA2ventricularA2tachycardiaA2orA2
supraventricularA2tachycardia.A2-A2Ans--
D.A2CardioversionA2deliversA2aA2synchronizedA2shockA2forA2ventricularA2tachycardiaA2orA2
supraventricularA2tachycardia.A2

,CardioversionA2involvesA2theA2deliveryA2ofA2aA2synchronizedA2electricA2shockA2toA2termina
teA2unstableA2ventricularA2orA2supraventricularA2rhythms.A2ItA2isA2notA2usefulA2inA2ventricul
arA2fibrillationA2becauseA2allA2electricalA2activityA2isA2disorganizedA2withA2noA2abilityA2toA2s
ynchronize.A2DefibrillationA2deliversA2anA2asynchronousA2countershock,A2depolarizingA2aA
2criticalA2massA2ofA2theA2myocardiumA2toA2stopA2theA2re-
entryA2circuitA2inA2ventricularA2fibrillationA2orA2pulselessA2ventricularA2tachycardia,A2allowin
gA2theA2sinusA2nodeA2toA2regainA2controlA2ofA2theA2heart.

WhichA2cardiacA2rhythmA2typicallyA2deterioratesA2intoA2ventricularA2fibrillationA2(VF)?A2

A.A2AtrialA2flutterA2
B.A2AtrialA2fibrillationA2
C.A2VentricularA2tachycardiaA2(VT)A2
D.A2Third-degreeA2heartA2blockA2-A2Ans--C.A2VentricularA2tachycardiaA2(VT)A2

VTA2mayA2occurA2inA2patientsA2withA2ischemicA2heartA2disease,A2myocardialA2infarctionA2(
MI),A2cardiomyopathy,A2hypokalemia,A2hypomagnesemia,A2valvularA2heartA2disease,A2he
artA2failure,A2drugA2toxicity,A2hypotension,A2orA2ventricularA2aneurysm.A2InA2patientsA2who
A2goA2intoA2cardiacA2arrest,A2VTA2isA2commonlyA2theA2initialA2rhythmA2beforeA2deterioratin
gA2intoA2VFA2asA2theA2terminalA2rhythm.A2AtrialA2fibrillationA2andA2flutterA2areA2notA2life-
threateningA2rhythms.A2Third-
degreeA2heartA2blockA2isA2relatedA2toA2ischemiaA2orA2scarringA2inA2theA2atrioventricularA2n
ode,A2whichA2slowsA2theA2rate,A2ratherA2thanA2makingA2theA2heartA2irritableA2asA2inA2VTA2a
ndA2fibrillation.

ToA2decreaseA2dysrhythmias,A2whichA2foodA2doesA2theA2nurseA2suggestA2forA2aA2patientA2
whoA2isA2atA2riskA2forA2potassiumA2imbalance?A2

A.A2GrapesA2
B.A2ApplesA2
C.A2TurnipsA2
D.A2StrawberriesA2-A2Ans--D.A2Strawberries

Potassium-
containingA2foodsA2includeA2citrus,A2tomatoes,A2beans,A2prunes,A2avocados,A2bananas,A2
strawberries,A2andA2lettuce.A2Turnips,A2grapes,A2andA2applesA2areA2notA2foodsA2highA2inA2
potassium.

WhichA2riskA2factorA2isA2knownA2toA2contributeA2toA2atrialA2fibrillationA2(AF)?
A2SelectA2allA2thatA2apply.A2

A.A2PalpitationsA2
B.A2AdvancingA2ageA2
C.A2HighA2bloodA2pressureA2
D.A2ExcessiveA2alcoholA2useA2
E.A2UseA2ofA2beta-adrenergicA2blockersA2-A2Ans--B.A2AdvancingA2ageA2

, C.A2HighA2bloodA2pressureA2
D.A2ExcessiveA2alcoholA2useA2

TheA2incidenceA2ofA2AFA2increasesA2withA2age.A2RiskA2factorsA2includeA2hypertension,A2pr
eviousA2ischemicA2stroke,A2transientA2ischemicA2attackA2orA2otherA2thromboembolicA2eve
nt,A2coronaryA2heartA2disease,A2diabetesA2mellitus,A2heartA2failureA2andA2mitralA2valveA2di
sease,A2obesity,A2CaucasianA2race,A2andA2excessiveA2alcohol.A2Beta-
adrenergicA2blockingA2agents,A2whichA2reduceA2heartA2rate,A2areA2usedA2toA2treatA2AF.A2P
alpitationsA2areA2aA2symptomA2ofA2atrialA2fibrillationA2ratherA2thanA2aA2riskA2orA2aA2cause.

TheA2nurseA2identifiesA2thatA2whichA2medicationA2willA2beA2givenA2toA2aA2patientA2whoA2pr
esentsA2toA2theA2emergencyA2departmentA2withA2chestA2pain,A2shortnessA2ofA2breath,A2dia
phoresis,A2hypotension,A2andA2aA2heartA2rateA2ofA256A2beats/min?A2

A.A2DigoxinA2
B.A2AtropineA2
C.A2VerapamilA2
D.A2PropranololA2-A2Ans--B.A2AtropineA2

TheA2administrationA2ofA2atropineA2alongA2withA2IVA2fluidsA2willA2increaseA2intravascularA2
volumeA2andA2helpA2toA2manageA2bradycardia.A2BetaA2blockersA2suchA2asA2propranololA2
areA2notA2administeredA2toA2patientsA2withA2bradycardia.A2CardiacA2glycosideA2(digoxin)A2
andA2calciumA2channelA2blockersA2(verapamil)A2willA2furtherA2decreaseA2theA2heartA2rateA2
andA2worsenA2theA2symptoms.

WhichA2complicationA2isA2associatedA2withA2carotidA2sinusA2massageA2therapy?
A2SelectA2allA2thatA2apply.A2

A.A2SinusA2bradycardiaA2
B.A2CerebralA2damageA2
C.A2VentricularA2fibrillationA2
D.A2PrematureA2atrialA2complexesA2
E.A2PrematureA2ventricularA2complexesA2-A2Ans--A.A2SinusA2bradycardiaA2
B.A2CerebralA2damageA2
C.A2VentricularA2fibrillationA2

SupraventricularA2tachydysrhythmiasA2areA2treatedA2temporarilyA2byA2carotidA2sinusA2ma
ssageA2therapy.A2ComplicationsA2ofA2thisA2therapyA2includeA2bradycardia,A2cerebralA2dam
age,A2andA2ventricularA2fibrillation.A2PrematureA2atrialA2complexesA2areA2causedA2byA2irrit
atedA2atrialA2tissue,A2whichA2isA2notA2associatedA2withA2carotidA2sinusA2massageA2therapy
.A2PrematureA2ventricularA2complexesA2areA2causedA2byA2irritatedA2ventricularA2tissue,A2w
hichA2isA2alsoA2notA2associatedA2withA2carotidA2sinusA2massageA2therapy.

TheA2nurseA2monitorsA2forA2whichA2adverseA2effectA2whenA2administeringA2acebutololA2to
A2aA2patient?A2

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