What is the infusion dose range for epinephrine?

What is the infusion dose range for epinephrine?

• A. 0.01-0.30 mg/kg/min
• B. 0.1-1.0 mcg/kg/min
• C. 2-4 mcg/kg/min
• D. 0.001-0.005 mg/kg/min

Answer: (A)

Infusion doses for epinephrine are expressed in micrograms per kilogram per minute. A common starting range is about 0.01 to 0.30 mcg/kg/min, which provides pressor and inotropic support with a lower risk of tachyarrhythmias or excessive vasoconstriction. As you titrate to achieve the target mean arterial pressure and adequate perfusion, you increase gradually. The reason this range is favored is that at low doses epinephrine’s beta effects help boost cardiac output and stroke volume without aggressive alpha-mediated vasoconstriction, while higher doses carry more risk of tachycardia and excessive vasoconstriction. The alternative options either misstate the unit (mg/kg/min, which is not used for continuous epinephrine infusions) or propose ranges that are too high to start safely.

Infusion doses for epinephrine are expressed in micrograms per kilogram per minute. A common starting range is about 0.01 to 0.30 mcg/kg/min, which provides pressor and inotropic support with a lower risk of tachyarrhythmias or excessive vasoconstriction. As you titrate to achieve the target mean arterial pressure and adequate perfusion, you increase gradually. The reason this range is favored is that at low doses epinephrine’s beta effects help boost cardiac output and stroke volume without aggressive alpha-mediated vasoconstriction, while higher doses carry more risk of tachycardia and excessive vasoconstriction. The alternative options either misstate the unit (mg/kg/min, which is not used for continuous epinephrine infusions) or propose ranges that are too high to start safely.