Which of the following will the body begin to do i

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Which of the following will the body begin to do in order to compensate for hyperkalemia?

A. vasoconstriction of blood vessels B. increase ADH secretion C. decrease aldosterone secretion D. increase aldosterone secretion

Correct Answer: D

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

Increased osmolality of the ECF

A. increases thirst B. inhibits ADH C. increases renin secretion D. increases aldosterone secretion

Correct Answer: A

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

In which of the following situations does one see large volumes of dilute urine produced?

A. ADH levels decrease B. renin levels increase C. aldosterone levels increase D. parathyroid hormone levels decrease

Correct Answer: A

Rationale: Low ADH reduces water reabsorption, producing dilute urine.

Body fluid pH will rise dramatically when

A. sodium is excreted by the kidney B. large amounts of bicarbonate are ingested C. carbonic acid is formed D. the respiratory rate decreases

Correct Answer: B

Rationale: Excess bicarbonate ingestion neutralizes H⁺, raising pH.

The normal pH for blood plasma is

A. 7 B. 7.25 C. 7.4 D. 7.55

Correct Answer: C

Rationale: Normal blood plasma pH is 7.40, slightly alkaline.

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