How do the kidneys regulate blood pressure through their secondary function?
By directly pumping blood to increase blood pressure
By filtering out excess glucose which can affect blood pressure
By producing red blood cells to increase blood volume
By secreting renin which activates the renin-angiotensin-aldosterone system (RAAS)
The Correct Answer is D
A. By directly pumping blood to increase blood pressure:
Only the heart pumps blood. Kidneys regulate fluid balance but do not pump blood.
B. By filtering out excess glucose which can affect blood pressure:
While glucose regulation affects blood vessels, this is not the main mechanism by which kidneys regulate BP.
C. By producing red blood cells to increase blood volume:
Kidneys produce erythropoietin (for RBC production), which can influence BP indirectly, but it's not their primary mechanism.
D. By secreting renin which activates the renin-angiotensin-aldosterone system (RAAS):
This is the correct and primary mechanism. Renin triggers a cascade that results in vasoconstriction and sodium/water retention, raising blood pressure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. By directly pumping blood to increase blood pressure:
Only the heart pumps blood. Kidneys regulate fluid balance but do not pump blood.
B. By filtering out excess glucose which can affect blood pressure:
While glucose regulation affects blood vessels, this is not the main mechanism by which kidneys regulate BP.
C. By producing red blood cells to increase blood volume:
Kidneys produce erythropoietin (for RBC production), which can influence BP indirectly, but it's not their primary mechanism.
D. By secreting renin which activates the renin-angiotensin-aldosterone system (RAAS):
This is the correct and primary mechanism. Renin triggers a cascade that results in vasoconstriction and sodium/water retention, raising blood pressure.
Correct Answer is B
Explanation
A. Social worker:
A social worker assists with psychosocial support and discharge planning, not physical function or adaptive equipment training.
B. Occupational therapist:
Occupational therapists help clients with activities of daily living and can recommend adaptive devices (e.g., large-handled utensils, plate guards) to aid in feeding and independence.
C. Speech pathologist:
Involved in swallowing or speech difficulties, not physical feeding limitations due to joint issues.
D. Registered dietitian:
Addresses nutritional needs, not functional challenges with feeding mechanics.
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