As the rate of sweat production increases, the amount of sodium lost in the urine

Correct Answer: B

Rationale: Increased sweating reduces blood volume, triggering aldosterone release, which decreases urinary sodium loss.

Correct Answer: C

Rationale: Aldosterone increases sodium reabsorption, leading to hypernatremia.

Correct Answer: D

Rationale: Increased aldosterone secretion enhances potassium excretion to correct hyperkalemia.

Correct Answer: A

Rationale: PTH increases bone resorption to raise blood calcium levels.

Correct Answer: A

Rationale: High ECF osmolality stimulates thirst to restore fluid balance.