Exam 1: Dysrhythmias (NCLEX)
Exam 1: Dysrhythmias (NCLEX)
Questions and Answers Best Graded A+
2024-2025.
A client's electrocardiogram strip shows atrial and ventricular rates of 80
complexes per minute. The PR interval is 0.14 second, and the QRS complex
measures 0.08 second. The nurse interprets this rhythm is:
, Exam 1: Dysrhythmias (NCLEX)
A) Normal sinus rhythm
B) Sinus bradycardia
C) Sinus tachycardia
D) Sinus dysrhythmia - Answer: A
A client has frequent bursts of ventricular tachycardia on the cardiac monitor. A
nurse is most concerned with this dysrhythmia because:
A) It is uncomfortable for the client, giving a sense of impending doom.
B) It produces a high 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. - Answer: D
Ventricular tachycardia is a life-threatening dysrhythmia that results from an
irritable ectopic focus that takes over as the pacemaker for the heart. The low
cardiac output that results can lead quickly to cerebral and myocardial ischemia.
Client's frequently experience a feeling of impending death. Ventricular
tachycardia is treated with antidysrhythmic medications or magnesium sulfate,
cardioversion (client awake), or defibrillation (loss of consciousness), Ventricular
tachycardia can deteriorate into ventricular defibrillation at any time.
, Exam 1: Dysrhythmias (NCLEX)
The nurse administers amiodarone (Cordarone) to a client with ventricular
tachycardia. Which monitoring by the nurse is necessary with this drug? Select all
that apply.
a. Respiratory rate
b. QT interval
c. Heart rate and rhythm
d. Magnesium level
e. Urine output - Answer: BCD
Amiodarone causes prolongation of the QT interval, which can precipitate
dysrhythmia. Antidysrhythmic medications cause changes in cardiac rhythm and
rate; therefore monitoring of heart rate and rhythm is needed.Electrolyte
depletion, specifically potassium and magnesium, may predispose to further
dysrhythmia. Although it is always important to monitor vital signs and urine
output, these assessments are not specific to amiodarone.
The nurse is caring for a client with acute coronary syndrome (ACS) and atrial
fibrillation who has a new prescription for metoprolol (Lopressor). Which
monitoring is essential when administering the medication?
a. ST segment
Exam 1: Dysrhythmias (NCLEX)
Questions and Answers Best Graded A+
2024-2025.
A client's electrocardiogram strip shows atrial and ventricular rates of 80
complexes per minute. The PR interval is 0.14 second, and the QRS complex
measures 0.08 second. The nurse interprets this rhythm is:
, Exam 1: Dysrhythmias (NCLEX)
A) Normal sinus rhythm
B) Sinus bradycardia
C) Sinus tachycardia
D) Sinus dysrhythmia - Answer: A
A client has frequent bursts of ventricular tachycardia on the cardiac monitor. A
nurse is most concerned with this dysrhythmia because:
A) It is uncomfortable for the client, giving a sense of impending doom.
B) It produces a high 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. - Answer: D
Ventricular tachycardia is a life-threatening dysrhythmia that results from an
irritable ectopic focus that takes over as the pacemaker for the heart. The low
cardiac output that results can lead quickly to cerebral and myocardial ischemia.
Client's frequently experience a feeling of impending death. Ventricular
tachycardia is treated with antidysrhythmic medications or magnesium sulfate,
cardioversion (client awake), or defibrillation (loss of consciousness), Ventricular
tachycardia can deteriorate into ventricular defibrillation at any time.
, Exam 1: Dysrhythmias (NCLEX)
The nurse administers amiodarone (Cordarone) to a client with ventricular
tachycardia. Which monitoring by the nurse is necessary with this drug? Select all
that apply.
a. Respiratory rate
b. QT interval
c. Heart rate and rhythm
d. Magnesium level
e. Urine output - Answer: BCD
Amiodarone causes prolongation of the QT interval, which can precipitate
dysrhythmia. Antidysrhythmic medications cause changes in cardiac rhythm and
rate; therefore monitoring of heart rate and rhythm is needed.Electrolyte
depletion, specifically potassium and magnesium, may predispose to further
dysrhythmia. Although it is always important to monitor vital signs and urine
output, these assessments are not specific to amiodarone.
The nurse is caring for a client with acute coronary syndrome (ACS) and atrial
fibrillation who has a new prescription for metoprolol (Lopressor). Which
monitoring is essential when administering the medication?
a. ST segment
