Hypertension
Hypertension ( 42 Questions)
A nurse is explaining the pathophysiology of hypertension to a client. Which process is primarily responsible for elevated blood pressure in hypertension?
This option is incorrect. In hypertension, there is often vasoconstriction and increased sodium retention, leading to elevated blood pressure.
Correct answer. Activation of the renin-angiotensin-aldosterone system (RAAS) is a key mechanism in hypertension. It leads to vasoconstriction and increased water and sodium retention, elevating blood pressure.
This option is incorrect. In hypertension, sympathetic nervous system activity is often increased, not decreased.
This option is incorrect. In hypertension, there is reduced nitric oxide production, which contributes to arterial stiffness and elevated blood pressure.
Rationale:
A) This option is incorrect. In hypertension, there is often vasoconstriction and increased sodium retention, leading to elevated blood pressure.
B) Correct answer. Activation of the renin-angiotensin-aldosterone system (RAAS) is a key mechanism in hypertension. It leads to vasoconstriction and increased water and sodium retention, elevating blood pressure.
C) This option is incorrect. In hypertension, sympathetic nervous system activity is often increased, not decreased.
D) This option is incorrect. In hypertension, there is reduced nitric oxide production, which contributes to arterial stiffness and elevated blood pressure.