Which of the following statements best describes the difference between the intrinsic and extrinsic controls of the kidney?
Extrinsic controls will reduce blood plasma volume while intrinsic controls will increase blood plasma volumes.
Intrinsic controls raise blood pressure while extrinsic controls lower blood pressure.
Extrinsic and intrinsic controls work in nearly opposite ways.
Extrinsic controls have the greatest effect on systemic blood pressure while intrinsic controls have a greater effect on GFR.
The Correct Answer is D
A. Extrinsic controls will reduce blood plasma volume while intrinsic controls will increase blood plasma volumes: This is too simplistic. Both can influence fluid volume, but their primary goals differ.
B. Intrinsic controls raise blood pressure while extrinsic controls lower blood pressure: Intrinsic controls maintain GFR, not blood pressure; extrinsic controls (like RAAS and sympathetic input) raise BP.
C. Extrinsic and intrinsic controls work in nearly opposite ways: They serve different purposes rather than being true opposites.
D. Extrinsic controls have the greatest effect on systemic blood pressure while intrinsic controls have a greater effect on GFR: Intrinsic (renal autoregulation) maintains a constant GFR; extrinsic controls (like sympathetic nervous system and RAAS) maintain systemic blood pressure, especially during stress or blood loss.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Sodium, potassium, calcium, chloride, and phosphorus: These are micronutrients (minerals).
B. Nucleic acids, carbohydrates, lipids, and proteins: Nucleic acids are not dietary macronutrients.
C. Sodium, potassium, carbohydrates, lipids, and proteins: Sodium and potassium are micronutrients.
D. Carbohydrates, lipids, proteins, and water: These are the true macronutrients, required in large amounts for energy and metabolic function.
E. Carbohydrates, lipids, and proteins, but not water: Water is an essential macronutrient, even though it doesn’t provide calories.
Correct Answer is A
Explanation
A. More carbonic acid is formed: The bicarbonate ion (HCO₃⁻) binds with H⁺ from HCl, forming carbonic acid (H₂CO₃), which helps buffer the drop in pH.
B. Hydrochloric acid is neutralized by sodium hydroxide: Sodium hydroxide is not involved in this buffer system; this describes a basic chemical reaction, not physiological buffering.
C. Carbonic acid is converted into bicarbonate: The reverse happens when acid is added-bicarbonate becomes carbonic acid.
D. The blood plasma pH is reduced: The buffer system prevents a large drop in pH by neutralizing the added acid.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.