Free NCLEX RN Practice Questions Practice Question
A client is complaining of chest pain. Nursing assessment reveals a BP of 78/40, shortness of breath, and third-degree AV block on the heart monitor. What medication would the nurse prepare for initial administration?
Correct Answer: A
Rationale: In cases of third-degree AV block, atropine is the first-line treatment as it increases heart rate by blocking vagal effects on the heart, addressing the bradycardia associated with the block.
Verapamil, a calcium channel blocker, is inappropriate here as it can further decrease heart rate and worsen hypotension.
Lidocaine is an antiarrhythmic used primarily for ventricular arrhythmias, not for AV block management.
Procainamide is another antiarrhythmic that can also exacerbate hypotension and is not indicated for third-degree AV block.
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