When there is excess Na⁺ in the body, A) the plasma volume is expanded, and arterial blood pressure is increased. B) as a compensatory measure, the GFR is increased. C) as a compensatory measure, urine output decreases D) both (a) and (b) above. E) all of these answers.

Question

Quizplus · Accepted Answer

Excess Na⁺ in the body leads to an increase in plasma volume and arterial blood pressure (option A). As a compensatory measure, the glomerular filtration rate (GFR) is increased (option B) to try and eliminate the excess sodium through the kidneys. However, this increased GFR can also result in an increase in urine output (option C). Therefore, both option A and B are correct, making option D the best choice.

When There Is Excess Na+ in the Body

When There Is Excess Na⁺ in the Body