CARDIAC DYSRHYTHMIAS TEST BANK
QUESTIONS AND CORRECT ANSWERS
TheA2nurseA2assessesA2aA2client'sA2ECGA2tracingA2andA2observesA2thatA2notA2allA2QRSA2c
omplexesA2areA2precededA2byA2aA2PA2wave.A2HowA2shouldA2theA2nurseA2interpretA2thisA2o
bservation?
A.A2TheA2clientA2hasA2hyperkalemiaA2causingA2irregularA2QRSA2complexes.
B.A2VentricularA2tachycardiaA2isA2overridingA2theA2normalA2atrialA2rhythm.
C.A2TheA2client'sA2chestA2leadsA2areA2notA2makingA2sufficientA2contactA2withA2theA2skin.
D.A2VentricularA2andA2atrialA2depolarizationsA2areA2initiatedA2fromA2differentA2sites.A2-
A2Ans--D.A2VentricularA2andA2atrialA2depolarizationsA2areA2initiatedA2fromA2differentA2sites.
Rationale:A2NormalA2rhythmA2showsA2oneA2PA2waveA2precedingA2eachA2QRSA2complex,A2
indicatingA2thatA2allA2depolarizatoinA2isA2initiatedA2atA2theA2SAA2node.A2QRSA2complexesA2
withoutA2aA2PA2waveA2indicateA2aA2differentA2sourceA2ofA2initiationA2ofA2depolarization.A2Th
isA2findingA2onA2anA2ECGA2tracingA2isA2notA2anA2indicationA2ofA2hyperkalemia,A2ventricular
A2tachycardia,A2orA2disconnectionA2ofA2leads.
AA2nurseA2caresA2forA2aA2clientA2whoA2hasA2aA2heartA2rateA2averagingA256A2beats/
minA2withA2noA2adverseA2symptoms.A2WhichA2activityA2modificationA2shouldA2theA2nurseA2
suggestA2toA2avoidA2furtherA2slowingA2ofA2theA2heartA2rate?
A.A2MakeA2certainA2thatA2yourA2bathA2waterA2isA2warm.
B.A2AvoidA2strainingA2whileA2havingA2aA2bowelA2movement.
C.A2LimitA2yourA2intakeA2ofA2caffeinatedA2drinksA2toA2oneA2aA2day.
D.A2AvoidA2strenuousA2exerciseA2suchA2asA2running.A2-A2Ans--
B.A2AvoidA2strainingA2whileA2havingA2aA2bowelA2movement.
Rationale:A2BearingA2downA2strenuouslyA2duringA2aA2bowelA2movementA2isA2oneA2typeA2o
fA2ValsalvaA2maneuver,A2whichA2stimulatesA2theA2vagusA2nerveA2andA2resultsA2inA2slowing
A2ofA2theA2heartA2rate.A2SuchA2aA2resultA2isA2notA2desirableA2inA2aA2personA2whoA2hasA2bra
dycardia.A2TheA2otherA2instructionsA2areA2notA2appropriateA2forA2thisA2condition.
AA2nurseA2isA2assessingA2clientsA2onA2aA2med-
surgA2unit.A2WhichA2clientA2shouldA2theA2nurseA2identifyA2asA2beingA2atA2greatestA2riskA2for
A2atrialA2fibrillation?
QUESTIONS AND CORRECT ANSWERS
TheA2nurseA2assessesA2aA2client'sA2ECGA2tracingA2andA2observesA2thatA2notA2allA2QRSA2c
omplexesA2areA2precededA2byA2aA2PA2wave.A2HowA2shouldA2theA2nurseA2interpretA2thisA2o
bservation?
A.A2TheA2clientA2hasA2hyperkalemiaA2causingA2irregularA2QRSA2complexes.
B.A2VentricularA2tachycardiaA2isA2overridingA2theA2normalA2atrialA2rhythm.
C.A2TheA2client'sA2chestA2leadsA2areA2notA2makingA2sufficientA2contactA2withA2theA2skin.
D.A2VentricularA2andA2atrialA2depolarizationsA2areA2initiatedA2fromA2differentA2sites.A2-
A2Ans--D.A2VentricularA2andA2atrialA2depolarizationsA2areA2initiatedA2fromA2differentA2sites.
Rationale:A2NormalA2rhythmA2showsA2oneA2PA2waveA2precedingA2eachA2QRSA2complex,A2
indicatingA2thatA2allA2depolarizatoinA2isA2initiatedA2atA2theA2SAA2node.A2QRSA2complexesA2
withoutA2aA2PA2waveA2indicateA2aA2differentA2sourceA2ofA2initiationA2ofA2depolarization.A2Th
isA2findingA2onA2anA2ECGA2tracingA2isA2notA2anA2indicationA2ofA2hyperkalemia,A2ventricular
A2tachycardia,A2orA2disconnectionA2ofA2leads.
AA2nurseA2caresA2forA2aA2clientA2whoA2hasA2aA2heartA2rateA2averagingA256A2beats/
minA2withA2noA2adverseA2symptoms.A2WhichA2activityA2modificationA2shouldA2theA2nurseA2
suggestA2toA2avoidA2furtherA2slowingA2ofA2theA2heartA2rate?
A.A2MakeA2certainA2thatA2yourA2bathA2waterA2isA2warm.
B.A2AvoidA2strainingA2whileA2havingA2aA2bowelA2movement.
C.A2LimitA2yourA2intakeA2ofA2caffeinatedA2drinksA2toA2oneA2aA2day.
D.A2AvoidA2strenuousA2exerciseA2suchA2asA2running.A2-A2Ans--
B.A2AvoidA2strainingA2whileA2havingA2aA2bowelA2movement.
Rationale:A2BearingA2downA2strenuouslyA2duringA2aA2bowelA2movementA2isA2oneA2typeA2o
fA2ValsalvaA2maneuver,A2whichA2stimulatesA2theA2vagusA2nerveA2andA2resultsA2inA2slowing
A2ofA2theA2heartA2rate.A2SuchA2aA2resultA2isA2notA2desirableA2inA2aA2personA2whoA2hasA2bra
dycardia.A2TheA2otherA2instructionsA2areA2notA2appropriateA2forA2thisA2condition.
AA2nurseA2isA2assessingA2clientsA2onA2aA2med-
surgA2unit.A2WhichA2clientA2shouldA2theA2nurseA2identifyA2asA2beingA2atA2greatestA2riskA2for
A2atrialA2fibrillation?