Nursing Elites

1. Located in the middle of the brain, what organ is responsible for satiety and hunger?

• A. Medulla Oblongata
• B. Pituitary Gland
• C. Hypothalamus
• D. Parathyroid

Correct answer: C

Rationale: The hypothalamus, located in the middle of the brain, plays a crucial role in regulating hunger and satiety. It contains specific regions that control appetite and feeding behavior. The Medulla Oblongata (Choice A) is responsible for regulating vital functions like heartbeat and breathing, not hunger. The Pituitary Gland (Choice B) is an endocrine gland that secretes hormones but is not primarily involved in hunger regulation. The Parathyroid (Choice D) is responsible for regulating calcium levels in the body and not related to hunger or satiety.

2. The nurse cares for a hospitalized adolescent with the diagnosis of anorexia nervosa. Which nursing goal is a priority for this client?

• A. Encourage effective coping skills
• B. Restore normal eating habits
• C. Stop weight loss or restore weight
• D. Promote realistic self-image

Correct answer: C

Rationale: In the treatment of anorexia nervosa, stopping weight loss or restoring weight is a critical priority. This helps address the immediate health risks associated with severe malnutrition and supports the client's physical well-being. Encouraging effective coping skills, restoring normal eating habits, and promoting a realistic self-image are essential aspects of treatment but may come later in the care plan once the immediate risk of severe weight loss has been addressed.

3. A common side effect of diuretic medications is _____.

• A. dry mouth
• B. urinary tract infection
• C. increased taste perception
• D. nausea

Correct answer: A

Rationale: Diuretic medications can lead to dry mouth due to increased fluid loss through urination, reducing saliva production.

4. What is the purpose of a chest tube after a lobectomy procedure, as understood by the nurse?

• A. Prevent mediastinal shift
• B. Promote chest expansion of the remaining lung
• C. Drain fluids and blood accumulated post-operatively
• D. Remove the air in the lungs to promote lung expansion

Correct answer: C

Rationale: After a lobectomy, a chest tube is typically inserted to drain fluids and blood that may have accumulated post-operatively. This tube helps to prevent complications, such as infections or pneumonia, and aids in patient recovery. While a chest tube may aid in preventing a mediastinal shift (Choice A), promoting chest expansion of the remaining lung (Choice B), and removing air in the lungs to promote lung expansion (Choice D), these are not the primary reasons for its use after a lobectomy. Therefore, Choices A, B, and D are incorrect.

5. What physiologic role does magnesium play in the body?

• A. Blood clotting, transmission of nerve impulses, muscle contraction and relaxation
• B. Calcium homeostasis, structural integrity of heart muscle
• C. No known metabolic function, caries-preventing properties
• D. ATP energy release; metabolism of fats, carbohydrates, proteins; regulates acid-base balance

Correct answer: B

Rationale: The correct answer is B. Magnesium plays an important role in maintaining calcium homeostasis and preventing skeletal abnormalities. It is involved in more than 300 enzymatic reactions, including energy metabolism, insulin activity, and glucose use. Magnesium is vital to the structural integrity of heart muscle and other muscles and nerves. While magnesium does play a role in blood clotting, nerve impulses, muscle contraction, relaxation, ATP energy release, and metabolism of fats, carbohydrates, proteins, the primary physiologic role of magnesium in the body is related to calcium homeostasis and maintaining the structural integrity of the heart muscle. Choice A is incorrect because it includes functions of magnesium, but they are not its primary physiologic role. Choice C is incorrect as magnesium has several known metabolic functions. Choice D is incorrect because although magnesium is involved in ATP energy release and metabolism, its primary role is related to calcium homeostasis and structural integrity of muscle.

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