Why is epinephrine given during resuscitation?

Why is epinephrine given during resuscitation?

• A. It has vasoconstrictive and positive inotropic effects to increase cerebral and coronary perfusion
• B. It directly terminates arrhythmias
• C. It is used to facilitate ventilation
• D. It provides analgesia

Answer: (A)

During resuscitation, the key goal is to maximize blood flow to the heart and brain while CPR is ongoing. Epinephrine helps achieve that by causing vasoconstriction through alpha-adrenergic receptors, which raises aortic diastolic pressure and, in turn, increases coronary and cerebral perfusion pressures. This boost in perfusion improves the chance of return of spontaneous circulation. Its beta-adrenergic effects can provide some additional support for heart activity, but the main benefit in this context is the improved perfusion to essential organs. It isn’t used to terminate arrhythmias directly, to facilitate ventilation, or to provide analgesia.

During resuscitation, the key goal is to maximize blood flow to the heart and brain while CPR is ongoing. Epinephrine helps achieve that by causing vasoconstriction through alpha-adrenergic receptors, which raises aortic diastolic pressure and, in turn, increases coronary and cerebral perfusion pressures. This boost in perfusion improves the chance of return of spontaneous circulation. Its beta-adrenergic effects can provide some additional support for heart activity, but the main benefit in this context is the improved perfusion to essential organs. It isn’t used to terminate arrhythmias directly, to facilitate ventilation, or to provide analgesia.