Exam (elaborations)
CRITICAL CARE MIDTERM (RELEVANT EVOLVE QS & ANS )
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CRITICAL CARE MIDTERM (RELEVANT EVOLVE QS & ANS )
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CRITICAL CARE MIDTERM (RELEVANTEVOLVE QS & ANS 2024 - 2025)
When,an,electrical,signal,in,the,heart,is,aimed,directly,at,the,positive,electrode,,the,nurse,interprets,that,
the,deflection,seen,on,the,12-lead,ECG,or,rhythm,strip,will,be:
A,equiphasic.
b,negative.
C,positive.
D,invisible,,ANS,-,,C,positive
The,nurse,is,interpreting,the,rhythm,strip,of,a,patient,and,measures,the,QRS,complex,as,being,three,sma
ll,boxes,in,width.,The,nurse,interprets,this,width,as:
,0.04,seconds.
,0.10,seconds.
,0.12,seconds.,
,0.16,seconds.,,ANS,-,,0.12,seconds
The,nurse,is,interpreting,a,patient's,cardiac,rhythm,and,notes,that,the,PR,interval,is,0.16,seconds,long.,T
he,nurse,determines,that,this,PR,interval,indicates:
A,slower-than-normal,conduction,from,the,SA,node,through,the,AV,node.
B,normal,conduction,from,the,SA,node,through,the,AV,node.,
C,faster-than-normal,conduction,from,the,SA,node,through,the,AV,node.
D,abnormally,fast,depolarization,of,the,atria,and,ventricles.,,ANS,-
,,B,normal,conduction,from,the,SA,node,through,the,AV,node.
normal,PR,interval,is,0.12-0.20
The,patient,is,complaining,of,midsternal,chest,discomfort,and,nausea.,The,nurse,calls,for,a,12-
lead,ECG,and,notices,that,the,ST,segment,is,newly,elevated,in,two,related,leads.,The,nurse,should:
A,call,the,provider,because,the,ST,segment,may,indicate,myocardial,injury.
, B,continue,to,monitor,the,patient,,as,the,ST,segment,is,nondiagnostic.
C,monitor,the,patient,for,increased,signs,of,GI,upset.
D,assure,the,patient,that,the,ST,elevations,are,normal,and,of,no,concern.,,ANS,-
,,A,call,the,provider,because,the,ST,segment,may,indicate,myocardial,injury.
The,nurse,is,calculating,the,rate,for,a,regular,rhythm.,There,are,20,small,boxes,before,each,R,wave.,The,n
urse,interprets,the,rate,to,be:
,50,beats/min.
,75,beats/min.
,85,beats/min.
,100,beats/min.,,ANS,-,,75,bpm
The,nurse,is,caring,for,an,individual,who,is,admitted,for,chest,pain,and,shortness,of,breath.,The,patient,s
tates,,"I,can't,believe,I'm,having,chest,pain.,I'm,a,marathon,runner,and,in,good,shape.",During,the,night,,
the,patient,develops,a,sinus,bradycardia,with,a,heart,rate,of,40,beats/min.,The,nurse,should:
A,ignore,this,rate,since,the,patient,is,an,athlete.
B,assess,the,patient,for,signs,of,decreased,cardiac,output.
C,take,the,patient's,temperature,and,expect,to,find,hyperthermia.
,D,perform,carotid,massage,(a,maneuver,to,stimulate,a,vasovagal,response).,,ANS,-
,,B,assess,the,patient,for,signs,of,decreased,cardiac,output.
The,patient,is,admitted,with,a,heart,rate,of,144,beats/min,and,a,blood,pressure,of,88/42,mm,Hg.,The,pat
ient,complains,of,generalized,weakness,and,fatigue.,He,states,,"Just,let,me,sleep.",The,nurse,determines,
that,the,presence,of,the,patient's,symptoms,is,due,to:
A,decreased,cardiac,output.,
B,the,absence,of,ischemic,heart,disease.
C,improved,cardiac,filling,time,,allowing,the,patient,to,relax.
,D,increased,coronary,artery,filling,time.,,ANS,-,,A,decreased,cardiac,output.
If,the,sinus,node,were,diseased,or,ischemic,and,no,longer,firing,as,the,heart's,primary,pacemaker,,the,nu
rse,would,anticipate,which,normal,compensatory,mechanism?
A,Premature,junctional,beats
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