Which of the following is an example of an adrenergic agonist?

Elevate your medical career by mastering the CalRegional Medical Assistant Exam with our specially designed quizzes, flashcards, and hints that equip you for success. Dive into our study materials and gain confidence for exam day!

Multiple Choice

Which of the following is an example of an adrenergic agonist?

An adrenergic agonist activates adrenergic receptors in the sympathetic nervous system, mimicking the effects of adrenaline. Epinephrine is a classic example because it binds to both alpha and beta receptors throughout the body, causing responses like increased heart rate, bronchodilation, and vasoconstriction needed in emergencies. The other substances don’t activate these receptors: acetaminophen reduces pain and fever through non-adrenergic mechanisms; diphenhydramine blocks histamine receptors; citalopram increases serotonin by inhibiting its reuptake. So epinephrine best fits the definition of an adrenergic agonist.

An adrenergic agonist activates adrenergic receptors in the sympathetic nervous system, mimicking the effects of adrenaline. Epinephrine is a classic example because it binds to both alpha and beta receptors throughout the body, causing responses like increased heart rate, bronchodilation, and vasoconstriction needed in emergencies. The other substances don’t activate these receptors: acetaminophen reduces pain and fever through non-adrenergic mechanisms; diphenhydramine blocks histamine receptors; citalopram increases serotonin by inhibiting its reuptake. So epinephrine best fits the definition of an adrenergic agonist.

More practice questions