What medication is considered to be the most useful in treating cardiac arrest?
a. Bretylium tosylate (Bretylium)
b. Xylocaine (lidocaine)
c. Adrenaline (epinephrine)
d. Naloxone (Narcan)
ANS: C
Epinephrine is considered one of the most useful drugs in treating cardiac arrest. As an adrenergic agent, it acts on both ?- and ?-receptors in the heart. Epinephrine is rapidly cleared from the bloodstream. Bretylium is no longer used in pediatric cardiac arrest management. Lidocaine is used for ventricular arrhythmias only. Naloxone is useful only to reverse effects of opioids.
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