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. Instruction on health promotion regarding urinary elimination is important. Which would you include?

• A. Hold urine as long as possible before emptying the bladder to strengthen the sphincter muscles
• B. If a burning sensation is experienced while voiding, drink water
• C. After urination, wipe from the anal area towards the pubis
• D. Tell the client to empty the bladder at each voiding

Correct answer: D

Rationale: The correct answer is to instruct the client to empty the bladder at each voiding. This is essential to prevent urinary retention and reduce the risk of urinary tract infections. Choice A is incorrect because holding urine for prolonged periods can lead to urinary retention and increase the risk of infections. Choice B is incorrect as pineapple juice can exacerbate a burning sensation due to its acidity; the correct approach is to drink water to dilute the urine. Choice C is incorrect as wiping from the anal area towards the pubis can introduce bacteria into the urinary tract, potentially causing infections.

3. A healthcare provider is teaching a client who has constipation about a high-fiber diet. Which of the following foods should be included as sources of fiber? (Select one that does not apply.)

• A. Whole wheat bread
• B. Kidney beans
• C. Refined cereals
• D. Blackberries

Correct answer: C

Rationale: Refined cereals are not a good source of fiber as they have been processed and stripped off most of their fiber content. Whole wheat bread, kidney beans, and blackberries are excellent sources of fiber. Whole wheat bread is made from whole grains, which are high in fiber. Kidney beans are rich in fiber and can help alleviate constipation. Blackberries are a good source of fiber and can aid in promoting bowel regularity.

4. Each of the following foods has cariostatic properties, with one exception. Which food is the exception?

• A. Eggs
• B. Instant oatmeal
• C. Cheese
• D. Seafood

Correct answer: B

Rationale: Cariostatic foods are those that contribute to the prevention of tooth decay. Eggs, cheese, and seafood are all cariostatic foods, as they can aid in protecting against tooth decay. On the contrary, instant oatmeal does not possess these cariostatic properties. Due to its processed nature, it is more fermentable and cariogenic, which means it can encourage cavity formation. Although it is not directly harmful to the teeth, it does not provide the same defensive benefits against tooth decay as the other choices do. Therefore, 'Instant oatmeal' is the exception among these foods and is the correct answer.

5. A patient has begun taking furosemide to manage heart failure. What food should the nurse recommend that the patient consume frequently while taking this drug?

• A. legumes
• B. cabbage
• C. peanut butter
• D. bananas

Correct answer: D

Rationale: Furosemide is a diuretic that can lead to potassium loss; therefore, it is recommended that patients consume potassium-rich foods like bananas to prevent hypokalemia.

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