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. Dental hygienists should not encourage patients with eating disorders such as bulimia to brush immediately after vomiting because self-induced vomiting causes erosion of tooth enamel and dentin hypersensitivity.

• A. Both the statement and the reason are correct and related
• B. Both the statement and the reason are correct but are not related
• C. The statement is correct, but the reason is not correct
• D. The statement is not correct, but the reason is correct

Correct answer: D

Rationale: The corrected question emphasizes that patients with eating disorders like bulimia should not brush immediately after vomiting as it can worsen enamel erosion due to the acidic content in the mouth. The correct answer is D because patients should rinse with water or a fluoride mouthwash instead of brushing to protect their teeth. Choice A is incorrect because encouraging patients to brush after vomiting is not recommended. Choice B is incorrect as the reason provided is valid but not suitable for the action of encouraging brushing. Choice C is incorrect as the reason for not brushing after vomiting is to prevent enamel erosion.

3. Which type of assessment evaluates a person's risk of malnutrition by ranking key variables from the medical history and physical examination?

• A. Katz index
• B. integrated assessment
• C. subjective global assessment
• D. nutrition care plan

Correct answer: C

Rationale: The Subjective Global Assessment (SGA) is the correct choice. SGA is a comprehensive tool used to assess an individual's risk of malnutrition by integrating key variables from the medical history, physical examination, and other relevant factors. The Katz index is used to assess activities of daily living, not malnutrition risk. An integrated assessment refers to the overall evaluation process involving multiple assessments. A nutrition care plan is a personalized plan developed based on assessment findings, not the assessment itself.

4. A nurse is instructing a group of clients about nutrition. The nurse should include that which of the following is a trigger for the formation of vitamin D in the body?

• A. Calcium
• B. Vitamin A depletion
• C. Exposure to sunlight
• D. Weight-bearing exercise

Correct answer: C

Rationale: Exposure to sunlight is the trigger for the formation of vitamin D in the body. When the skin is exposed to sunlight, it produces vitamin D. This process is essential for maintaining healthy levels of vitamin D in the body. Calcium (Choice A) is important for bone health but is not the trigger for vitamin D formation. Vitamin A depletion (Choice B) does not directly trigger the formation of vitamin D. Weight-bearing exercise (Choice D) is crucial for bone health but is not directly related to the formation of vitamin D.

5. Age group categories within older adults are classified as 'young old,' 'old,' and 'oldest old,' the latter of which comprises adults aged _____.

• A. 70-80 years
• B. 75-84 years
• C. 80-90 years
• D. 85 years or older

Correct answer: D

Rationale: The 'oldest old' category includes adults aged 85 years or older. This age group faces unique health challenges and requires specialized care. Choices A, B, and C are incorrect as they do not fall within the age range specified for the 'oldest old' category.

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