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. A client is being taught about following a low-cholesterol diet after coronary artery bypass grafting. Which of the following food choices reflects the client's understanding of these dietary instructions?

• A. Liver
• B. Milk
• C. BEANS
• D. Eggs

Correct answer: C

Rationale: Choosing beans as a food option indicates that the client understands the low-cholesterol diet instructions. Beans are a good source of fiber and plant-based protein, which can help lower cholesterol levels. On the other hand, liver and eggs are high in cholesterol and should be limited in a low-cholesterol diet. Milk, especially whole milk, can also be high in saturated fats and cholesterol, so it is not the best choice for a low-cholesterol diet.

3. What condition has been shown to be associated with esophageal dysphagia?

• A. myasthenia gravis
• B. achalasia
• C. Alzheimer's disease
• D. cerebral palsy

Correct answer: B

Rationale: Achalasia is the correct answer. It is a condition characterized by the esophagus having difficulty moving food toward the stomach, resulting in dysphagia (difficulty swallowing). Myasthenia gravis (Choice A) is a neuromuscular disorder that affects skeletal muscles, not the esophagus. Alzheimer's disease (Choice C) primarily affects cognitive function, not the esophagus. Cerebral palsy (Choice D) is a neurological disorder affecting body movement and muscle coordination, unrelated to esophageal dysphagia.

4. A client who underwent surgical placement of a colostomy is being cared for by a nurse. Which of the following statements indicates the client understands the dietary teaching?

• A. "Eating yogurt can help decrease the amount of gas that I have."?
• B. "I should eliminate pasta from my diet so that I don't have as many loose stools."?
• C. "My largest meal of the day should be in the evening."?
• D. "Carbonated beverages can help control odor."?

Correct answer: D

Rationale: The correct answer is D. Carbonated beverages can help control odor in clients with colostomies. This is because carbonated drinks can help decrease odor by reducing the production of odoriferous compounds in the colon. Choices A, B, and C are incorrect. Eating yogurt may help regulate bowel movements but does not specifically address odor control associated with colostomies. Eliminating pasta from the diet to reduce loose stools is not necessary for colostomy care. The timing of the largest meal of the day is not directly related to dietary teaching for colostomy care.

5. Which of the following is not a desirable blood lipid value?

• A. low total cholesterol
• B. high LDL
• C. high HDL
• D. low blood triglycerides

Correct answer: B

Rationale: The correct answer is B. High levels of LDL (low-density lipoprotein) cholesterol are undesirable as they are associated with an increased risk of cardiovascular disease. Therefore, low total cholesterol (choice A), high HDL (choice C), and low blood triglycerides (choice D) are considered desirable blood lipid values. Low total cholesterol is beneficial as high levels can increase the risk of heart disease. High HDL cholesterol is considered good as it helps remove LDL cholesterol from the arteries. Low blood triglycerides are also preferred as high levels are associated with an increased risk of heart disease.

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