A Nurse Is Discussing Phentolamine [OraVerse] with a Nursing Student

A nurse is discussing phentolamine [OraVerse] with a nursing student. Which statement by the student indicates the need for further teaching?

A) "Phentolamine can be used to block both epinephrine- and norepinephrine-mediated vasoconstriction."
B) "Phentolamine can be used to prevent tissue necrosis after extravasation of drugs such as norepinephrine."
C) "Phentolamine is a competitive adrenergic agonist that acts selectively on alpha₁ receptors."
D) "Side effects of phentolamine may include tachycardia and hypotension."