Florida State Paramedic Practice Exam

What is the first line drug administered for pediatric bradycardia?

1. Epinephrine

2. Adenosine

3. Atropine

4. Oxygen

The correct answer is: Oxygen

The first-line drug administered for pediatric bradycardia is atropine. In cases of symptomatic bradycardia in pediatrics, atropine is preferred because it works as an anticholinergic agent that blocks the effects of the vagus nerve on the heart, effectively increasing the heart rate. It is important to note that vagal stimulation can significantly influence the heart rate in children, and administering atropine can help mitigate this effect. While oxygen is critical in any emergency situation and serves to support overall respiratory function, it does not specifically address the underlying cause of bradycardia nor does it directly stimulate an increase in heart rate. Other medications like epinephrine and adenosine also have specific roles but are not first-line treatments for pediatric bradycardia. Epinephrine is typically used in cases of cardiac arrest or profound bradycardia with inadequate perfusion, while adenosine is primarily used for the treatment of supraventricular tachycardia. Therefore, atropine is the correct choice as the first-line drug for treating pediatric bradycardia.