A Nursing Student Asks Why Albuterol, Which Is Selective for Beta₂

A nursing student asks why albuterol, which is selective for beta₂ receptors, causes an increased heart rate in some patients. How should the nurse respond?

A) "Adrenergic agonists can lose their selectivity when given at higher doses."
B) "Bronchodilation lowers blood pressure, which causes a reflex tachycardia."
C) "Some patients metabolize the drug differently and have unusual side effects."
D) "Systemic effects are intensified with inhaled doses."

Correct Answer:

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