NR 464 Exam 2 (Cardiac and Endocrine) Questions With
Complete Solutions
A cardiac care nurse is aware of factors that result in positive
chronotropy. These factors would affect a patient's cardiac
function in what way? Correct Answers Increasing the heart
rate
Rational:
Stimulation of the sympathetic system increases heart rate. This
phenomenon is known as positive chronotropy.
A group of nurses are participating in orientation to a telemetry
unit. What should the staff educator tell this class about ST
segments? Correct Answers They are the part of an ECG that
represents early ventricular repolarization.
Rational:
ST segment is the part of an ECG that reflects the end of the
QRS complex to the beginning of the T wave.
A nurse is caring for a patient who is exhibiting ventricular
tachycardia (VT). Because the patient is pulseless, the nurse
should prepare for what intervention? Correct Answers
Defibrillation
Rational: Any type of VT in a patient who is unconscious and
without a pulse is treated in the same manner as ventricular
fibrillation: Immediate defibrillation is the action of choice.
, A nurse is providing health education to a patient scheduled for
cryoablation therapy. The nurse should describe what aspect of
this treatment? Correct Answers Cryoablation therapy
involves using a cooled probe to create a small scar on the
endocardium to eliminate the source of the dysrhythmias.
A nurse is providing health education to a patient scheduled for
Electrical ablation. The nurse should describe what aspect of this
treatment? Correct Answers Electrical ablation involves using
shocks to eliminate the area causing the dysrhythmias.
A nurse is providing health education to a patient scheduled for
Endocardium resection. The nurse should describe what aspect
of this treatment? Correct Answers Endocardium resection
involves peeling away a specified area of the endocardium.
A nurse is providing health education to a patient scheduled for
Radio frequency ablation. The nurse should describe what
aspect of this treatment? Correct Answers Radio frequency
ablation uses high-frequency sound waves to destroy the area
causing the dysrhythmias.
A patient calls his cardiologist's office and talks to the nurse. He
is concerned because he feels he is being defibrillated too often.
The nurse tells the patient to come to the office to be evaluated
because the nurse knows that the most frequent complication of
ICD therapy is what? Correct Answers Oversensing of
dysrhythmias
Feedback:
Complete Solutions
A cardiac care nurse is aware of factors that result in positive
chronotropy. These factors would affect a patient's cardiac
function in what way? Correct Answers Increasing the heart
rate
Rational:
Stimulation of the sympathetic system increases heart rate. This
phenomenon is known as positive chronotropy.
A group of nurses are participating in orientation to a telemetry
unit. What should the staff educator tell this class about ST
segments? Correct Answers They are the part of an ECG that
represents early ventricular repolarization.
Rational:
ST segment is the part of an ECG that reflects the end of the
QRS complex to the beginning of the T wave.
A nurse is caring for a patient who is exhibiting ventricular
tachycardia (VT). Because the patient is pulseless, the nurse
should prepare for what intervention? Correct Answers
Defibrillation
Rational: Any type of VT in a patient who is unconscious and
without a pulse is treated in the same manner as ventricular
fibrillation: Immediate defibrillation is the action of choice.
, A nurse is providing health education to a patient scheduled for
cryoablation therapy. The nurse should describe what aspect of
this treatment? Correct Answers Cryoablation therapy
involves using a cooled probe to create a small scar on the
endocardium to eliminate the source of the dysrhythmias.
A nurse is providing health education to a patient scheduled for
Electrical ablation. The nurse should describe what aspect of this
treatment? Correct Answers Electrical ablation involves using
shocks to eliminate the area causing the dysrhythmias.
A nurse is providing health education to a patient scheduled for
Endocardium resection. The nurse should describe what aspect
of this treatment? Correct Answers Endocardium resection
involves peeling away a specified area of the endocardium.
A nurse is providing health education to a patient scheduled for
Radio frequency ablation. The nurse should describe what
aspect of this treatment? Correct Answers Radio frequency
ablation uses high-frequency sound waves to destroy the area
causing the dysrhythmias.
A patient calls his cardiologist's office and talks to the nurse. He
is concerned because he feels he is being defibrillated too often.
The nurse tells the patient to come to the office to be evaluated
because the nurse knows that the most frequent complication of
ICD therapy is what? Correct Answers Oversensing of
dysrhythmias
Feedback:
