Nursing Elites

1. Each statement regarding the correlation between vitamin D and sun exposure is accurate, except one. Which is the exception?

• A. The body can produce sufficient amounts of vitamin D from sunlight.
• B. UV radiation can convert a precursor of vitamin D to vitamin D3 by penetrating uncovered skin.
• C. Sunscreen blocks the formation of vitamin D3.
• D. By the age of 70 years, the skin generally produces vitamin D at only half the level it did at the age of 20 years.

Correct answer: C

Rationale: While UV radiation can penetrate uncovered skin and convert a precursor of vitamin D to vitamin D3, sunscreen does block the formation of vitamin D3. Sunscreen is recommended by dermatologists to prevent sunburn and reduce the risk of skin cancer. The other choices are correct: the body can produce sufficient vitamin D from sunlight, UV radiation can convert a precursor of vitamin D to vitamin D3, and skin generally produces less vitamin D as a person ages.

2. Nurse Edna thinks that the patient is somewhat like his father. She then identifies positive feeling for the patient that affects the objectivity of her nursing care. This emotional reaction is called:

• A. Transference
• B. Counter Transference
• C. Reaction formation
• D. Sympathy

Correct answer: A

Rationale: Patient safety and efficacy of care depend on actions rooted in established nursing protocols that consider both the immediate and long-term needs of the patient.

3. What does a QRS Complex represent in an ECG reading?

• A. Atrial depolarization
• B. Ventricular repolarization
• C. Ventricular depolarization
• D. End of ventricular depolarization

Correct answer: C

Rationale: The QRS Complex in an ECG reading represents ventricular depolarization, which is the process of the heart's ventricles preparing to contract by changing the electrical charge in the cell, hence choice 'C' is the correct answer. Choice 'A' is incorrect because atrial depolarization is represented by the P wave in an ECG reading, not the QRS Complex. Choice 'B' is incorrect as ventricular repolarization is depicted by the T wave, not the QRS Complex. Finally, choice 'D' is also incorrect because the QRS Complex is not the end of ventricular depolarization, but the process itself.

4. Match the energy-yielding nutrient to the amount of energy it provides to the body: Carbs, Fats, Proteins.

• A. Carbs - 4kcal/g
• B. Fats - 9kcal/g
• C. Proteins - 4kcal/g
• D. All of the above

Correct answer: D

Rationale: The correct answer is D, All of the above. Carbohydrates and proteins provide 4 kcal per gram, while fats provide 9 kcal per gram. Therefore, all three energy-yielding nutrients provide different amounts of energy to the body. Choice A, B, and C are incorrect because each of them individually provides a specific amount of energy per gram, but when considering all nutrients together, they collectively cover the spectrum of energy provision to the body.

5. A client is being taught by a nurse about adding more fiber to the diet. Which of the following foods has the highest fiber content?

• A. 1 cup cooked sweet potato
• B. 1 slice rye toast
• C. 1 cup raw watermelon
• D. 1 oz cashews

Correct answer: D

Rationale: The correct answer is D, 1 oz of cashews. Cashews have a higher fiber content compared to sweet potato, rye toast, and watermelon. While sweet potatoes and rye toast contain fiber, cashews have a higher concentration, making them a better choice for increasing fiber intake. Watermelon, on the other hand, is low in fiber compared to the other options provided.

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