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NCLEX Dysrhythmias Exam 1 Review Questions and Answers 100% Pass | Graded A+
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NCLEX Dysrhythmias Exam 1 ReviewQuestions and Answers 100% Pass |
Graded A+
David Mungai [Date] [Course title]
, NCLEX Dysrhythmias Exam 1 Review
Questions and Answers 100% Pass |
Graded A+
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:
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.
, 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
b. Heart rate
c. Troponin
d. Myoglobin - Answer>> B
The effects of metoprolol are to decrease heart rate, blood
pressure, and myocardial oxygen demand. ST segment elevation
is consistent with MI; it does not address monitoring of metoprolol.
Elevation in troponin is consistent with a diagnosis of MI but does
not address needed monitoring for metoprolol. Elevation in
myoglobin is consistent with myocardial injury in ACS but does
not address needed monitoring related to metoprolol.
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