A patient with symptomatic third-degree atrioventricular block exhibits hypotension and confusion. Which definitive emergency bedside pacing modality is indicated immediately?
Answer and explanation
Correct answer: C. Transcutaneous cardiac pacing
Answer: Transcutaneous cardiac pacing.
Why not the others: Chest wall percussion cannot maintain reliable ventricular pacing capture; Carotid massage stimulates vagal tone and worsens high-degree AV block; Closed-chest compressions are reserved for pulseless cardiac arrest.
Why not the others: Chest wall percussion cannot maintain reliable ventricular pacing capture; Carotid massage stimulates vagal tone and worsens high-degree AV block; Closed-chest compressions are reserved for pulseless cardiac arrest.
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