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 D
Explanation
Choice A rationale
Furosemide is a loop diuretic that acts on the ascending limb of the loop of Henle, not the distal tubule.
Choice B rationale
Spironolactone is a potassium-sparing diuretic that works on the collecting ducts and late distal tubules, not the distal tubule.
Choice C rationale
Mannitol is an osmotic diuretic that acts on the proximal tubule and the descending limb of the loop of Henle, not the distal tubule.
Choice D rationale
Hydrochlorothiazide is a thiazide diuretic that works on the distal convoluted tubule, making it the correct answer.
Correct Answer is D
Explanation
Choice A rationale
Bradycardia is not a common complication of ondansetron (Zofran). Instead, one should watch for changes in heart rhythm such as QT interval prolongation.
Choice B rationale
Absence of nausea indicates the desired effect of ondansetron, not a complication.
Choice C rationale
Ondansetron is associated with prolongation of the QT interval, not shortening. QT interval shortening is not a recognized complication.
Choice D rationale
Prolonged QT interval is a known complication of ondansetron and can increase the risk of life-threatening arrhythmias. .
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