In a pediatric patient with a narrow-QRS tachycardia and dehydration, which initial management is recommended?

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Multiple Choice

In a pediatric patient with a narrow-QRS tachycardia and dehydration, which initial management is recommended?

When a child presents with a narrow‑QRS tachycardia and dehydration, the first priority is to restore volume status and get to definitive care. Dehydration lowers preload and can drive compensatory tachycardia to maintain perfusion. Giving isotonic fluids promptly improves preload and cardiac output, which can stabilize the patient and may reduce the heart rate as perfusion improves. Once the child is adequately fluid resuscitated and stable, rhythm‑directed therapies can be considered. If instability or poor perfusion develops, synchronized cardioversion is indicated. Vagal maneuvers or adenosine are more appropriate after ensuring adequate volume status and stability. Therefore, fluids with rapid transport is the best initial approach.

When a child presents with a narrow‑QRS tachycardia and dehydration, the first priority is to restore volume status and get to definitive care. Dehydration lowers preload and can drive compensatory tachycardia to maintain perfusion. Giving isotonic fluids promptly improves preload and cardiac output, which can stabilize the patient and may reduce the heart rate as perfusion improves. Once the child is adequately fluid resuscitated and stable, rhythm‑directed therapies can be considered. If instability or poor perfusion develops, synchronized cardioversion is indicated. Vagal maneuvers or adenosine are more appropriate after ensuring adequate volume status and stability. Therefore, fluids with rapid transport is the best initial approach.

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