A nurse is discussing how beta blockers work to decrease blood pressure with a nursing student. Which statement by the student indicates a need for further teaching?
“Beta blockers decrease the release of renin.”
“Beta blockers decrease peripheral vascular resistance.”
“Beta blockers decrease heart rate and contractility.”
“Beta blockers block the actions of angiotensin II.”
The Correct Answer is B
Choice A reason: Beta blockers decrease renin release, reducing angiotensin II and aldosterone, which lowers blood pressure. This statement is accurate, reflecting correct understanding, so it does not indicate a need for further teaching.
Choice B reason: Beta blockers do not primarily decrease peripheral vascular resistance; they reduce heart rate and contractility. Peripheral resistance is more affected by alpha blockers or vasodilators, so this incorrect statement indicates a need for further teaching.
Choice C reason: Beta blockers reduce heart rate and myocardial contractility, decreasing cardiac output and blood pressure. This statement is correct, showing proper understanding, so it does not require additional teaching.
Choice D reason: While beta blockers do not directly block angiotensin II, they reduce its production by decreasing renin. The statement is imprecise but not entirely wrong, making it less indicative of a teaching need than choice B.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Trade names are brand-specific (e.g., Tylenol for acetaminophen). N-acetyl-para-aminophenol is the chemical structure name, not a marketed brand. Trade names are proprietary and vary by manufacturer, while chemical names describe molecular composition, making this choice incorrect for the given term.
Choice B reason: Proprietary names are brand names owned by manufacturers (e.g., Advil for ibuprofen). N-acetyl-para-aminophenol is the chemical name for acetaminophen, not a proprietary or trade name, which is used for marketing purposes, making this choice incorrect for the drug’s nomenclature.
Choice C reason: Generic names are non-proprietary, like acetaminophen for N-acetyl-para-aminophenol. The term given is the chemical name, describing the molecular structure, not the standardized generic name used in clinical practice, making this choice incorrect for classifying N-acetyl-para-aminophenol.
Choice D reason: N-acetyl-para-aminophenol is the chemical name for acetaminophen, describing its molecular structure (an acetyl group on a para-aminophenol backbone). Chemical names are used in scientific contexts, distinct from generic or trade names, making this the correct choice for the drug’s nomenclature.
Correct Answer is B
Explanation
Choice A reason: Agonists activate receptors, mimicking endogenous ligands, not preventing activation. The drug blocks receptors, so this is incorrect for the described action.
Choice B reason: Antagonists prevent receptor activation by blocking ligand binding, inhibiting effects. This matches the drug’s action, making it the correct term.
Choice C reason: Potent describes a drug’s strength, not its mechanism of preventing receptor activation. Antagonist defines the action, so this is incorrect.
Choice D reason: Selective refers to targeting specific receptors, not preventing activation. Antagonist describes the functional role, so this is incorrect.
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