Exam 1: Dysrhythmias (NCLEX) Study Guide Exam
/ 80 Actual Questions with Answers & Rationales
(A+ Guide Solution) Newest 2025/2026
After receiving a B
permanent pacemaker, Early microwave ovens required avoidance by
persons with pacemakers, but not current models. Swimming
the client asks the nurse
would be contraindicated for the first few weeks due to
if there are any activities abduction of the arm while the leads were still adhering to the
to avoid during a muscle of the heart.
vacation However, 4 months postoperatively, the client should be able
to abduct arms for swimming. Working over a running
scheduled for 4 months engine, as well as being near high frequency power waves, is
after discharge. Which of contraindicated for anyone with a
permanent pacemaker.
the following is the most
appropriate response by
the nurse?
a. "Swimming in the
ocean should be
avoided."
b. "You should avoid
working over a
running engine."
c. "There are no
restrictions on
your activity."
d. "Avoid standing in front
of microwave ovens."
,The nurse is determining C
whether the client's A P wave is generated by the SA node and represents atrial
depolarization.
rhythm strip
demonstrates proper
firing of the
sinoatrial (SA) node.
Which waveform
indicates proper function
of the SA node?
a. The QRS complex
is present.
b. The PR interval is
0.24 second.
c. A P wave
precedes every QRS
complex.
d. The ST segment is
elevated.
,A client has frequent D
bursts of ventricular Ventricular tachycardia is a life-threatening
tachycardia on the cardiac dysrhythmia that results from an irritable ectopic
monitor. A nurse is most focus that takes over as the pacemaker for the heart.
concerned with this The low cardiac output that results can lead quickly to
dysrhythmia because: cerebral and myocardial ischemia. Client's frequently
experience a feeling of impending death. Ventricular
A) It is uncomfortable tachycardia is treated with antidysrhythmic
for the client, giving a medications or magnesium sulfate, cardioversion
sense of impending (client awake), or defibrillation (loss of consciousness),
doom. Ventricular tachycardia can deteriorate into
B) It produces a high ventricular defibrillation at any time.
cardiac output that quickly
leads to cerebral and
myocardial ischemia.
C) It is almost
impossible to convert
to a normal sinus
rhythm.
D) It can develop
into ventricular
fibrillation at
any time.
The nurse administers BCD
amiodarone Amiodarone causes prolongation of the QT interval,
(Cordarone) to a client which can precipitate dysrhythmia. Antidysrhythmic
with ventricular medications cause changes in cardiac rhythm and
tachycardia. Which rate; therefore monitoring of heart rate and rhythm is
monitoring by the nurse needed.Electrolyte depletion, specifically potassium
is necessary with this and magnesium, may predispose to further
drug? Select all that dysrhythmia. Although it is always important to
apply. monitor vital signs and urine output, these
assessments are not specific to amiodarone.
a. Respiratory rate
b. QT interval
c. Heart rate and rhythm
d. Magnesium level
, e. Urine output
A 20-year-old has a A
mandatory In an aerobically trained individual, sinus bradycardia is
normal. The student's normal BP and negative
electrocardiogram
health history indicate that there is no need for a
(ECG) before cardiology referral or for more detailed information about
participating on a the family's health history. Dyspnea during an aerobic
college soccer team activity such as soccer is normal.
and is found to have
sinus
bradycardia, rate 52.
Blood pressure (BP) is
114/54, and the
student denies any
health
problems. What action
by the nurse is most
appropriate?
/ 80 Actual Questions with Answers & Rationales
(A+ Guide Solution) Newest 2025/2026
After receiving a B
permanent pacemaker, Early microwave ovens required avoidance by
persons with pacemakers, but not current models. Swimming
the client asks the nurse
would be contraindicated for the first few weeks due to
if there are any activities abduction of the arm while the leads were still adhering to the
to avoid during a muscle of the heart.
vacation However, 4 months postoperatively, the client should be able
to abduct arms for swimming. Working over a running
scheduled for 4 months engine, as well as being near high frequency power waves, is
after discharge. Which of contraindicated for anyone with a
permanent pacemaker.
the following is the most
appropriate response by
the nurse?
a. "Swimming in the
ocean should be
avoided."
b. "You should avoid
working over a
running engine."
c. "There are no
restrictions on
your activity."
d. "Avoid standing in front
of microwave ovens."
,The nurse is determining C
whether the client's A P wave is generated by the SA node and represents atrial
depolarization.
rhythm strip
demonstrates proper
firing of the
sinoatrial (SA) node.
Which waveform
indicates proper function
of the SA node?
a. The QRS complex
is present.
b. The PR interval is
0.24 second.
c. A P wave
precedes every QRS
complex.
d. The ST segment is
elevated.
,A client has frequent D
bursts of ventricular Ventricular tachycardia is a life-threatening
tachycardia on the cardiac dysrhythmia that results from an irritable ectopic
monitor. A nurse is most focus that takes over as the pacemaker for the heart.
concerned with this The low cardiac output that results can lead quickly to
dysrhythmia because: cerebral and myocardial ischemia. Client's frequently
experience a feeling of impending death. Ventricular
A) It is uncomfortable tachycardia is treated with antidysrhythmic
for the client, giving a medications or magnesium sulfate, cardioversion
sense of impending (client awake), or defibrillation (loss of consciousness),
doom. Ventricular tachycardia can deteriorate into
B) It produces a high ventricular defibrillation at any time.
cardiac output that quickly
leads to cerebral and
myocardial ischemia.
C) It is almost
impossible to convert
to a normal sinus
rhythm.
D) It can develop
into ventricular
fibrillation at
any time.
The nurse administers BCD
amiodarone Amiodarone causes prolongation of the QT interval,
(Cordarone) to a client which can precipitate dysrhythmia. Antidysrhythmic
with ventricular medications cause changes in cardiac rhythm and
tachycardia. Which rate; therefore monitoring of heart rate and rhythm is
monitoring by the nurse needed.Electrolyte depletion, specifically potassium
is necessary with this and magnesium, may predispose to further
drug? Select all that dysrhythmia. Although it is always important to
apply. monitor vital signs and urine output, these
assessments are not specific to amiodarone.
a. Respiratory rate
b. QT interval
c. Heart rate and rhythm
d. Magnesium level
, e. Urine output
A 20-year-old has a A
mandatory In an aerobically trained individual, sinus bradycardia is
normal. The student's normal BP and negative
electrocardiogram
health history indicate that there is no need for a
(ECG) before cardiology referral or for more detailed information about
participating on a the family's health history. Dyspnea during an aerobic
college soccer team activity such as soccer is normal.
and is found to have
sinus
bradycardia, rate 52.
Blood pressure (BP) is
114/54, and the
student denies any
health
problems. What action
by the nurse is most
appropriate?
