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. To prevent baby bottle tooth decay, what should the nurse instruct?

• A. Water
• B. Milk
• C. Iron-fortified formula
• D. Unsweetened fruit juice

Correct answer: A

Rationale: The correct answer is A: Water. Water is the best choice to prevent baby bottle tooth decay as it does not cause tooth decay and is a good option for bedtime bottles. Milk (choice B) and iron-fortified formula (choice C) contain sugars that can contribute to tooth decay. Unsweetened fruit juice (choice D) also contains natural sugars that can be harmful to the baby's teeth.

3. A nurse is teaching a group of adults about nutrition. The nurse should include which of the following amounts as an appropriate daily intake of fiber for adult women?

• A. 5 to 10 g
• B. 10 to 15 g
• C. 20 to 35 g
• D. 40 to 50 g

Correct answer: C

Rationale: The correct answer is 20 to 35 g. This range is the recommended daily intake of fiber for adult women. Fiber is essential for maintaining a healthy digestive system and overall well-being. Option A (5 to 10 g) is too low and may not provide sufficient fiber intake. Option B (10 to 15 g) is also below the recommended range. Option D (40 to 50 g) is too high and can lead to gastrointestinal discomfort and other complications if consumed in excess.

4. What is the medical term for a persistent, abnormal distortion of taste?

• A. Anosmia
• B. Dysgeusia
• C. Xerostomia
• D. Hypogeusia

Correct answer: B

Rationale: The correct answer is Dysgeusia, which is a persistent and abnormal distortion of the sense of taste. This condition can be triggered by various factors such as medications or certain diseases. Anosmia, choice A, refers to the loss of the sense of smell, not taste. Xerostomia, choice C, is the medical term for dry mouth, which is not specifically related to a distortion of taste. Hypogeusia, choice D, refers to a reduced ability to taste things, which is not the same as a distortion of the sense of taste.

5. Furosemide (Lasix) is a drug used to _____.

• A. activate vitamin D
• B. stimulate appetite
• C. lower cholesterol
• D. mobilize fluids

Correct answer: D

Rationale: Furosemide is a diuretic that helps mobilize fluids by increasing urine output, often used to treat conditions like edema and heart failure.

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