Correct Answer: D

Rationale: The correct answer is D: An adrenal adenoma. Adrenal adenoma is the most common cause of primary hyperaldosteronism, also known as Conn's syndrome. Adrenal adenomas are benign tumors that cause overproduction of aldosterone, leading to increased sodium retention and potassium excretion. This results in hypertension and hypokalemia. Excessive sodium intake (A) and deficient potassium intake (B) are not direct causes of hyperaldosteronism. A pituitary adenoma (C) is associated with other hormone imbalances, such as Cushing's syndrome or acromegaly, but not hyperaldosteronism.

Correct Answer: C

Rationale: Step-by-step rationale: 1. Providing oral care does not directly address fluid balance or hydration status. 2. Oral care focuses on maintaining oral hygiene and preventing infections. 3. Choices A, B, and D all involve fluid intake to address dehydration. 4. Offering large amounts of fluid, enteral or parenteral fluids, and small volumes at frequent intervals all aim to correct the patient's condition by replenishing lost fluids. Summary: Choice C is incorrect because oral care does not directly address the patient's dehydration. Choices A, B, and D are better options as they focus on fluid replacement to correct the patient's condition.

Correct Answer: C

Rationale: The correct answer is C because it focuses on the client actively engaging in reducing tension, which is essential in managing anxiety. This outcome is measurable and client-centered. A: Verbalizing feelings is important, but it does not necessarily lead to reduction in anxiety. B: Not guessing prognosis is helpful, but it does not address the active management of anxiety. D: Stopping seeking information may not be beneficial as knowledge can empower the client in coping with the diagnosis.

Correct Answer: D

Rationale: The correct answer is D: An adrenal adenoma. Adrenal adenoma is the most common cause of primary hyperaldosteronism, also known as Conn's syndrome. Adrenal adenomas are benign tumors that cause overproduction of aldosterone, leading to increased sodium retention and potassium excretion. This results in hypertension and hypokalemia. Excessive sodium intake (A) and deficient potassium intake (B) are not direct causes of hyperaldosteronism. A pituitary adenoma (C) is associated with other hormone imbalances, such as Cushing's syndrome or acromegaly, but not hyperaldosteronism.

Correct Answer: D

Rationale: The correct answer is D because individuals with AB blood type are considered universal recipients, meaning they can receive blood from any blood type without risking complications due to incompatibility. This is because their blood cells have both A and B antigens and do not produce antibodies against either type. Therefore, the client can safely receive blood from types A, B, AB, or O without adverse reactions. Choices A, B, and C are incorrect because they limit the options for blood transfusion based on the client's AB blood type, which is not necessary given the unique nature of AB blood as universal recipients.