Geekbano
Med Surge Textbank Exam 3 Cardiac And HTN__Chapter 26 –
31_All questions Answered Correctly with Feedback
Chapter 26
The nurse is caring for a patient who has had an ECG. The nurse notes that
leads I, II, and III differ from one another on the cardiac rhythm strip. How
should the nurse best
1. respond?
Recognize that the view of the electrical current changes in relation to the
lead
placement.
A)
Recognize that the electrophysiological conduction of the heart differs with
lead
B) placement.
C) Inform the technician that the ECG equipment has malfunctioned.
D) Inform the physician that the patient is experiencing a new onset of
dysrhythmia.
Ans: A
Feedback:
Each lead offers a different reference point to view the electrical activity of the
heart. The lead displays the configuration of electrical activity of the heart.
Differences between leads are not necessarily attributable to equipment
malfunction or dysrhythmias.
The nurse is analyzing a rhythm strip. What component of the ECG corresponds
to the
2. resting state of the patient’s heart?
A) P wave
,Geekbano
B) T wave
C) U wave
D) QRS complex
Ans: B
Feedback:
The T wave specifically represents ventricular muscle depolarization, also
referred to as the resting state. Ventricular muscle depolarization does not
result in the P wave, U wave, or QRS complex.
The nursing educator is presenting a case study of an adult patient who has
abnormal ventricular depolarization. This pathologic change would be most
evident in what
3. component of the ECG?
A) P wave
B) T wave
C) QRS complex
D) U wave
Ans: C
Feedback:
The QRS complex represents the depolarization of the ventricles and, as such,
the electrical activity of that ventricle.
An adult patient with third-degree AV block is admitted to the cardiac care
unit and placed on continuous cardiac monitoring. What rhythm
characteristic will the ECG most likely
4. show?
A) PP interval and RR interval are irregular.
B) PP interval is equal to RR interval.
,Geekbano
C) Fewer QRS complexes than P waves
D) PR interval is constant.
Ans: C
Feedback:
In third-degree AV block, no atrial impulse is conducted through the AV node
into the ventricles. As a result, there are impulses stimulating the atria and
impulses stimulating the ventricles. Therefore, there are more P waves than
QRS complexes due to the difference in the natural pacemaker (nodes) rates of
the heart. The other listed ECG changes are not consistent with this diagnosis.
The nurse is writing a plan of care for a patient with a cardiac dysrhythmia. What
would
5. be the most appropriate goal for the patient?
A) Maintain a resting heart rate below 70 bpm.
B) Maintain adequate control of chest pain.
C) Maintain adequate cardiac output.
D) Maintain normal cardiac structure.
Ans: C
Feedback:
For patient safety, the most appropriate goal is to maintain cardiac output to
prevent worsening complications as a result of decreased cardiac output. A
resting rate of less than 70 bpm is not appropriate for every patient. Chest
pain is more closely associated with acute coronary syndrome than with
dysrhythmias. Nursing actions cannot normally influence the physical
structure of the heart.
A patient has returned to the cardiac care unit after having a permanent
pacemaker implantation. For which potential complication should the nurse most
closely assess this
6. patient?
A) Chest pain
B) Bleeding at the implantation site
, Geekbano
C) Malignant hyperthermia
D) Bradycardia
Ans: B
Feedback:
Bleeding, hematomas, local infections, perforation of the myocardium, and
tachycardia are complications of pacemaker implantations. The nurse should
monitor for chest pain and bradycardia, but bleeding is a more common
immediate complication. Malignant hyperthermia is unlikely because it is a
response to anesthesia administration.
A patient the nurse is caring for has a permanent pacemaker implanted with the
7. identification code beginning with VVI. What does this indicate?
A) Ventricular paced, ventricular sensed, inhibited
B) Variable paced, ventricular sensed, inhibited
C) Ventricular sensed, ventricular situated, implanted
D) Variable sensed, variable paced, inhibited
Ans: A
Feedback:
The identification of VVI indicates ventricular paced, ventricular sensed, inhibited.
The nurse is caring for an adult patient who has gone into ventricular fibrillation.
When
8. assisting with defibrillating the patient, what must the nurse do?
A) Maintain firm contact between paddles and patient skin.
B) Apply a layer of water as a conducting agent.
C) Call “all clear” once before discharging the defibrillator.
Med Surge Textbank Exam 3 Cardiac And HTN__Chapter 26 –
31_All questions Answered Correctly with Feedback
Chapter 26
The nurse is caring for a patient who has had an ECG. The nurse notes that
leads I, II, and III differ from one another on the cardiac rhythm strip. How
should the nurse best
1. respond?
Recognize that the view of the electrical current changes in relation to the
lead
placement.
A)
Recognize that the electrophysiological conduction of the heart differs with
lead
B) placement.
C) Inform the technician that the ECG equipment has malfunctioned.
D) Inform the physician that the patient is experiencing a new onset of
dysrhythmia.
Ans: A
Feedback:
Each lead offers a different reference point to view the electrical activity of the
heart. The lead displays the configuration of electrical activity of the heart.
Differences between leads are not necessarily attributable to equipment
malfunction or dysrhythmias.
The nurse is analyzing a rhythm strip. What component of the ECG corresponds
to the
2. resting state of the patient’s heart?
A) P wave
,Geekbano
B) T wave
C) U wave
D) QRS complex
Ans: B
Feedback:
The T wave specifically represents ventricular muscle depolarization, also
referred to as the resting state. Ventricular muscle depolarization does not
result in the P wave, U wave, or QRS complex.
The nursing educator is presenting a case study of an adult patient who has
abnormal ventricular depolarization. This pathologic change would be most
evident in what
3. component of the ECG?
A) P wave
B) T wave
C) QRS complex
D) U wave
Ans: C
Feedback:
The QRS complex represents the depolarization of the ventricles and, as such,
the electrical activity of that ventricle.
An adult patient with third-degree AV block is admitted to the cardiac care
unit and placed on continuous cardiac monitoring. What rhythm
characteristic will the ECG most likely
4. show?
A) PP interval and RR interval are irregular.
B) PP interval is equal to RR interval.
,Geekbano
C) Fewer QRS complexes than P waves
D) PR interval is constant.
Ans: C
Feedback:
In third-degree AV block, no atrial impulse is conducted through the AV node
into the ventricles. As a result, there are impulses stimulating the atria and
impulses stimulating the ventricles. Therefore, there are more P waves than
QRS complexes due to the difference in the natural pacemaker (nodes) rates of
the heart. The other listed ECG changes are not consistent with this diagnosis.
The nurse is writing a plan of care for a patient with a cardiac dysrhythmia. What
would
5. be the most appropriate goal for the patient?
A) Maintain a resting heart rate below 70 bpm.
B) Maintain adequate control of chest pain.
C) Maintain adequate cardiac output.
D) Maintain normal cardiac structure.
Ans: C
Feedback:
For patient safety, the most appropriate goal is to maintain cardiac output to
prevent worsening complications as a result of decreased cardiac output. A
resting rate of less than 70 bpm is not appropriate for every patient. Chest
pain is more closely associated with acute coronary syndrome than with
dysrhythmias. Nursing actions cannot normally influence the physical
structure of the heart.
A patient has returned to the cardiac care unit after having a permanent
pacemaker implantation. For which potential complication should the nurse most
closely assess this
6. patient?
A) Chest pain
B) Bleeding at the implantation site
, Geekbano
C) Malignant hyperthermia
D) Bradycardia
Ans: B
Feedback:
Bleeding, hematomas, local infections, perforation of the myocardium, and
tachycardia are complications of pacemaker implantations. The nurse should
monitor for chest pain and bradycardia, but bleeding is a more common
immediate complication. Malignant hyperthermia is unlikely because it is a
response to anesthesia administration.
A patient the nurse is caring for has a permanent pacemaker implanted with the
7. identification code beginning with VVI. What does this indicate?
A) Ventricular paced, ventricular sensed, inhibited
B) Variable paced, ventricular sensed, inhibited
C) Ventricular sensed, ventricular situated, implanted
D) Variable sensed, variable paced, inhibited
Ans: A
Feedback:
The identification of VVI indicates ventricular paced, ventricular sensed, inhibited.
The nurse is caring for an adult patient who has gone into ventricular fibrillation.
When
8. assisting with defibrillating the patient, what must the nurse do?
A) Maintain firm contact between paddles and patient skin.
B) Apply a layer of water as a conducting agent.
C) Call “all clear” once before discharging the defibrillator.
