A 36-year-old woman arrives as ESI 2 with palpitations and lightheadedness. BP 84/50, HR 182, RR 24; ECG shows regular narrow-complex tachycardia.

Question

A 36-year-old woman arrives as ESI 2 with palpitations and lightheadedness. BP 84/50, HR 182, RR 24; ECG shows regular narrow-complex tachycardia. She is diaphoretic and confused. Which of the following is the most appropriate initial action?

Accepted Answer

Perform synchronized cardioversion

Answer

Give adenosine through a proximal IV

Answer

Order thyroid function testing

Answer

Observe after vagal maneuvers

Answer

Start diltiazem infusion

Unstable supraventricular tachycardia — ABEM Board MCQ

A 36-year-old woman arrives as ESI 2 with palpitations and lightheadedness. BP 84/50, HR 182, RR 24; ECG shows regular narrow-complex tachycardia. She is diaphoretic and confused. Which of the following is the most appropriate initial action?