Nokea
A deficiency of ADH most likely:
Correct Answer: C
Rationale: Step-by-step rationale:
1. ADH (antidiuretic hormone) regulates water balance by increasing water reabsorption in the kidneys.
2. A deficiency of ADH leads to decreased water reabsorption, resulting in increased urine output (polyuria).
3. Polyuria causes dehydration, electrolyte imbalances, and concentrated urine.
4. Elevated blood glucose levels (choice A) and diabetes mellitus (choice B) are not directly related to ADH deficiency.
5. Expanding blood volume (choice D) would not occur due to decreased water reabsorption.
Summary:
A deficiency of ADH most likely induces polyuria by decreasing water reabsorption in the kidneys. Elevated blood glucose levels, diabetes mellitus, and expanding blood volume are not direct consequences of ADH deficiency.