NR 341 EXAM 2 QUESTIONS WITH VERIFIED SOLUTIONS LATEST UPDATE 2026
which pacemaker will be given for low ejection fraction (<30%) instead of dysrythmias and how does
it help increase CO? - Answers - biventricular
- it contracts the left and right ventricle at the same time
what are you at risk for later in life when you have low heart rate? - Answers hypertrophy/heart
failure
what is important to remember about the heart and sinus bradycardia? - Answers is there enough CO
if your assessment for a pt with sinus bradycardia shows signs and sypmtoms, what are your
actions/steps of care? - Answers - check if this is a dx or medication induced
- need to speed up heart rate: atropine, dopamine, epi
- subcutaneous pacemaker (1st mode- code cart turned pacer mode)
what three drugs can be given for sinus bradycardia, and what do we need to know about them? -
Answers - atropine: 0.5mg (x3) push
- dopamine: infusion
- epi: infusion
if CO = increased in HR x _______ SV - Answers decreased
if CO = decreased HR x ______ SV - Answers increased
what happens if a pt has a permanent pacemaker? - Answers restricted lifestyle because HR cannot
increase or decrease and affects CO
what is important to remember about atrial pacing? - Answers sometimes there is no P wave, that is
ok as long as it is followed by QRS complex
what is important to remember about ventricular pacing? - Answers the QRS will always be greater
than the range (>0.10)
what is failure to pace? - Answers when you don't see spike, emptiness where it should be/nothing to
generate contraction
what is the worry with failure to pace? - Answers perfusion and CO
- assess, VS
- then call provider
what is failure to capture? - Answers - pacer spike but no QRS
- not capturing left ventricle contract
what is failure to sense? - Answers can come from broken leads, bad conduction, dying pacemaker
what is the worry with failure to sense? - Answers lethal dsyrythmia (look for extra peak on QRS)
- R on T phenomon
what is sinus tachycardia and how do you fix? - Answers >100bpm, find causative factor and fix it
what will happen with CO with sinus tachycardia? - Answers low CO = decreased SV x increased HR
what are some causative factors of sinus tach? - Answers pain, anxiety, fever, dehydration, low CO
what will happen if you try to treat sinus tach with drugs before fixing actual problem? - Answers your
pt with become sicker
what is SVT? - Answers supraventricular tachycardia
what is the goal for SVT? - Answers slow down rhythm, convert to SR if able, restore CO
what actions do you take if your pt in SVT is unstable? - Answers -sedation
-synchronized cardioversion
-medication to control rate/rhythm
what actions do you take if your pt in SVT is stable? - Answers - valsalva maneuver
- adenosine
- cardiovert
- cardizem
- amiodorone
- metoprolol
where should IV be in giving adenosine/how do you give it? - Answers - should be in AC or higher
- SLAM it and flush 20ml asap
common side effects with adenosine? - Answers anxiety, chest pain, SOB, bronchospasm (may need
bronchodilater which can increase HR)
what is the only known chemical cardiovert? - Answers adenosine
when giving adenosine how many times can you repeat it and at what dose? - Answers 2x at 12mg a
dose
which pacemaker will be given for low ejection fraction (<30%) instead of dysrythmias and how does
it help increase CO? - Answers - biventricular
- it contracts the left and right ventricle at the same time
what are you at risk for later in life when you have low heart rate? - Answers hypertrophy/heart
failure
what is important to remember about the heart and sinus bradycardia? - Answers is there enough CO
if your assessment for a pt with sinus bradycardia shows signs and sypmtoms, what are your
actions/steps of care? - Answers - check if this is a dx or medication induced
- need to speed up heart rate: atropine, dopamine, epi
- subcutaneous pacemaker (1st mode- code cart turned pacer mode)
what three drugs can be given for sinus bradycardia, and what do we need to know about them? -
Answers - atropine: 0.5mg (x3) push
- dopamine: infusion
- epi: infusion
if CO = increased in HR x _______ SV - Answers decreased
if CO = decreased HR x ______ SV - Answers increased
what happens if a pt has a permanent pacemaker? - Answers restricted lifestyle because HR cannot
increase or decrease and affects CO
what is important to remember about atrial pacing? - Answers sometimes there is no P wave, that is
ok as long as it is followed by QRS complex
what is important to remember about ventricular pacing? - Answers the QRS will always be greater
than the range (>0.10)
what is failure to pace? - Answers when you don't see spike, emptiness where it should be/nothing to
generate contraction
what is the worry with failure to pace? - Answers perfusion and CO
- assess, VS
- then call provider
what is failure to capture? - Answers - pacer spike but no QRS
- not capturing left ventricle contract
what is failure to sense? - Answers can come from broken leads, bad conduction, dying pacemaker
what is the worry with failure to sense? - Answers lethal dsyrythmia (look for extra peak on QRS)
- R on T phenomon
what is sinus tachycardia and how do you fix? - Answers >100bpm, find causative factor and fix it
what will happen with CO with sinus tachycardia? - Answers low CO = decreased SV x increased HR
what are some causative factors of sinus tach? - Answers pain, anxiety, fever, dehydration, low CO
what will happen if you try to treat sinus tach with drugs before fixing actual problem? - Answers your
pt with become sicker
what is SVT? - Answers supraventricular tachycardia
what is the goal for SVT? - Answers slow down rhythm, convert to SR if able, restore CO
what actions do you take if your pt in SVT is unstable? - Answers -sedation
-synchronized cardioversion
-medication to control rate/rhythm
what actions do you take if your pt in SVT is stable? - Answers - valsalva maneuver
- adenosine
- cardiovert
- cardizem
- amiodorone
- metoprolol
where should IV be in giving adenosine/how do you give it? - Answers - should be in AC or higher
- SLAM it and flush 20ml asap
common side effects with adenosine? - Answers anxiety, chest pain, SOB, bronchospasm (may need
bronchodilater which can increase HR)
what is the only known chemical cardiovert? - Answers adenosine
when giving adenosine how many times can you repeat it and at what dose? - Answers 2x at 12mg a
dose
