A nurse is teaching a client about a medication that has a receptor antagonist effect.Which information should the nurse include in the teaching?
This medication will block the effects of normal cellular functions.
This medication will accelerate hormones in your body from attaching to cell receptor sites.
This medication minimizes the risk that other medications you take become toxic.
This medication will increase the cells in your body from performing certain actions.
The Correct Answer is A
Choice A rationale
A receptor antagonist blocks the effects of normal cellular functions by binding to receptor sites and preventing endogenous substances (like hormones or neurotransmitters) from activating those receptors.
Choice B rationale
Receptor antagonists do not accelerate hormones attaching to cell receptor sites; they prevent this process by blocking the receptors.
Choice C rationale
Receptor antagonists do not minimize the risk of other medications becoming toxic. They specifically block the action of certain endogenous substances.
Choice D rationale
Receptor antagonists do not increase the action of cells; rather, they inhibit or block the usual effects.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Ondansetron (Zofran) is an anti-emetic medication used to prevent nausea and vomiting by blocking serotonin receptors in the chemoreceptor trigger zone and the gastrointestinal tract.
Choice B rationale
Acetaminophen (Tylenol) is an analgesic and antipyretic medication used to relieve pain and reduce fever, but it is not an anti-emetic.
Choice C rationale
Prochlorperazine (Compazine) is an anti-psychotic and anti-emetic medication used to treat nausea and vomiting, as well as certain mental/mood disorders.
Choice D rationale
Morphine Sulfate is an opioid analgesic used to relieve moderate to severe pain but does not have anti-emetic properties.
Correct Answer is A
Explanation
Choice A rationale
Rotating injection sites helps prevent lipohypertrophy, which is the thickening of subcutaneous tissue due to repeated insulin injections at the same site.
Choice B rationale
Performing injections at the same location every time increases the risk of lipohypertrophy, leading to poor insulin absorption and erratic glucose control.
Choice C rationale
Administering an additional dose of insulin as needed does not address the issue of lipohypertrophy and can lead to hypoglycemia if not carefully monitored.
Choice D rationale
Insulin is a peptide hormone that must be injected. Taking it orally is ineffective as it would be broken down in the digestive system.
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