Sensors in the kidneys can detect a rapid loss of fluid after which of the following occurs?

a. low levels of antidiuretic hormone in the blood

b. low levels of aldosterone

c. increase in thirst

d. drop in blood pressure

(D). drop in blood pressure.

Explanation:

Sensors in kidney that detect fluid loss, when there is a drop in blood pressure. Loss of body fluid or electrolytes lead to decrease in blood pressure due to decrease in blood pressure.

Drop in blood pressure is detected by baroreceptors present in the carotid sinus or by macula densa (cells of kidney) that activate pathways for the secretion of hormones that prevent excessive water loss during excretion, such as antidiuretic hormone. It leads to increase in body fluid that helps to raise the blood pressure.

Thus, the correct answer is option (D)

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