A nurse is caring for a client with chest pain who becomes unresponsive. The client is pulseless and apneic. The code team places the client on the monitor, which indicates ventricular fibrillation. What is the next priority action?
Amiodarone administration
Defibrillation
Epinephrine administration
Synchronized Cardioversion
The Correct Answer is B
A. Amiodarone is an antiarrhythmic medication used after defibrillation and CPR in persistent ventricular fibrillation (VF) or ventricular tachycardia (VT). However, it is not the first priority.
B. Defibrillation is the immediate priority in a pulseless client with ventricular fibrillation. Early defibrillation increases the chances of survival. The shock should be delivered as soon as possible.
C. Epinephrine is given after the first defibrillation and CPR cycle, not before.
D. Synchronized cardioversion is inappropriate because it is used for unstable tachyarrhythmias with a pulse, not pulseless VF.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. A murmur is the expected heart sound in mitral valve regurgitation, caused by the backflow of blood into the left atrium during systole. It is typically a holosystolic murmur heard best at the apex of the heart.
B. S3 and S4 heart sounds may be heard in heart failure but are not specific for mitral regurgitation.
C. A friction rub is associated with pericarditis, not valvular disease.
D. A click is typically heard in mitral valve prolapse, not mitral regurgitation.
Correct Answer is D
Explanation
A. NSTEMI (Non-ST Elevation Myocardial Infarction) does not present with ST-segment elevation on the ECG. Instead, it shows ST-segment depression or T-wave inversion and is diagnosed with elevated cardiac biomarkers.
B. Stable angina is predictable chest pain that occurs with exertion and is relieved by rest or nitroglycerin. It does not cause acute ECG changes.
C. Unstable angina is characterized by chest pain that occurs at rest or with minimal exertion and is not relieved by nitroglycerin. However, it does not show ST-segment elevation or myocardial infarction markers.
D. STEMI (ST-Elevation Myocardial Infarction) is diagnosed when there is ST-segment elevation in two or more contiguous ECG leads, indicating complete occlusion of a coronary artery and requiring immediate intervention such as percutaneous coronary intervention (PCI) or thrombolytic therapy.
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