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?
Explanation & Rationale
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.