Sudden Palpitations in Pediatrics — 2yo Child | Pediatric Emergency | SMLE Q#18610
SMLE Question #18610
Pediatrics
Pediatric Emergency
Objective: OBJ-OPH-REFERRAL-001
Last updated: February 2026
A 2-year-old child is brought to the emergency department for sudden palpitations and lethargy. The caregiver reports reduced responsiveness. ECG shows a regular narrow-complex tachycardia at 230/min. What is the most appropriate next step in management?
Continue in practice mode
Sign in and start a focused practice session to view options, submit your answer, and read the full explanation.