A client's mental illness is being treated with a drug regimen that includes a receptor agonist. A drug that is an agonist has what function?
A) Inhibits cell function by occupying receptor sites
B) Binds to a receptor and causes a change in cellular function
C) Destroys cellular receptor sites to achieve therapeutic effect
D) Stabilizes a receptor in an inactive state
Ans: B
Feedback:
An agonist is a drug or endogenous substance that triggers an action from a cell or another drug. An agonist is attracted to binding to a given receptor. It activates that receptor and subsequently leads to a change in cellular function.
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