Nursing Elites

1. Which mineral is a principal component of cell membranes?

• A. phosphorus
• B. magnesium
• C. iron
• D. iodine

Correct answer: A

Rationale: Phosphorus is the correct answer. It is a key component of cell membranes, being part of the phospholipid bilayer that provides structure and controls the movement of substances in and out of cells. Magnesium, iron, and iodine do not serve as principal components of cell membranes. Magnesium is involved in various enzymatic reactions, iron is essential for oxygen transport, and iodine plays a role in thyroid hormone synthesis.

2. A client with a large lower-leg ulcer needs protein for wound healing. Which of the following foods should the nurse suggest?

• A. Kidney beans
• B. Grilled salmon
• C. Peanut butter
• D. Raw spinach

Correct answer: B

Rationale: Grilled salmon is the best choice for providing high-quality protein for wound healing. Salmon is rich in essential amino acids, omega-3 fatty acids, and vitamin D, which can help promote tissue repair and reduce inflammation. Kidney beans, peanut butter, and raw spinach are good protein sources but do not offer the same level of high-quality protein and nutrients needed specifically for wound healing.

3. A patient on a low-sodium diet should avoid which of the following foods?

• A. Fresh fruits
• B. Unsalted nuts
• C. Canned soup
• D. Plain rice

Correct answer: C

Rationale: Canned soup is the correct answer. Canned soups are often high in sodium due to added salt and should be avoided on a low-sodium diet. Fresh fruits (Choice A) are typically low in sodium and a good choice for a low-sodium diet. Unsalted nuts (Choice B) are also low in sodium and can be included in a low-sodium diet. Plain rice (Choice D) is a low-sodium food and can be part of a low-sodium diet.

4. Each is a portion of the alimentary canal, except one. Which is the exception?

• A. Oral cavity
• B. Pharynx
• C. Larynx
• D. Esophagus

Correct answer: C

Rationale: The correct answer is C, Larynx. The larynx is part of the respiratory system, responsible for voice production and breathing. The alimentary canal is involved in the digestive process and includes structures like the oral cavity (mouth), pharynx, and esophagus. Choices A, B, and D are parts of the alimentary canal, where digestion occurs, making them incorrect answers.

5. What is the most likely demonstration of cardiac cachexia?

• A. Decreased physical activity
• B. Weight loss and tissue wasting
• C. Poor urine output and tissue edema
• D. Cardiac arrhythmia and wet lung sounds

Correct answer: B

Rationale: Cardiac cachexia is a condition characterized by severe weight loss and tissue wasting. This typically occurs in patients suffering from heart failure due to an increased energy expenditure and reduced appetite, which is why choice B is the correct answer. The other choices are incorrect as they do not accurately describe the symptoms of cardiac cachexia. Decreased physical activity (choice A) can be a result of many conditions, not specifically cardiac cachexia. Poor urine output and tissue edema (choice C) are more indicative of kidney problems rather than cardiac cachexia. Finally, cardiac arrhythmia and wet lung sounds (choice D) are symptoms related to other cardiac conditions, not specifically to cardiac cachexia.

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