NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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Study for the NAPLEX exam with a comprehensive quiz featuring multiple-choice questions and in-depth explanations. Build your pharmacological knowledge and increase your chances of passing the pharmacist licensure examination!

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What does vasopressin primarily act as?

Beta agonist
Dopamine agonist
Vasopressor
Vasodilator

The correct answer is: Vasopressor

Vasopressin primarily acts as a vasopressor, meaning it constricts blood vessels and increases blood pressure. This is different from a beta agonist (A) or dopamine agonist (B) which act on specific receptors in the body to produce different effects. Vasopressin does have some vasodilating properties, but this is not its primary function (D). Therefore, the correct answer is C, vasopressor.