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. Which organ absorbs water and vitamin K and may be affected by ulcerative colitis?

• A. Stomach
• B. Pancreas
• C. Large intestine
• D. Small intestine

Correct answer: C

Rationale: The large intestine is the organ that is primarily responsible for the absorption of water and vitamin K in the human body. A disease like ulcerative colitis can disrupt these functions by causing inflammation and ulcers in the lining of the large intestine, leading to digestive issues. The stomach (Choice A) primarily functions to break down and digest food, not to absorb water and vitamins. The pancreas (Choice B) secretes enzymes to aid in digestion and hormones to regulate blood sugar, but does not absorb water and vitamins. The small intestine (Choice D) is primarily responsible for absorbing nutrients from digested food, but not specifically water and vitamin K. Therefore, these other choices are incorrect.

3. For a client with a history of gout, which food should be included in their diet?

• A. Red meat
• B. Whole grains
• C. High-fat dairy
• D. Processed meats

Correct answer: B

Rationale: Whole grains are low in purines and are a better choice for someone with gout.

4. What can be a potential consequence of consuming insufficient fat?

• A. constipation
• B. marasmus
• C. infertility
• D. diverticulitis

Correct answer: C

Rationale: The correct answer is C. Fat is crucial for the production of hormones, including reproductive hormones. Consuming too little fat can lead to hormonal imbalances, affecting fertility. Choices A, B, and D are incorrect. Constipation is more commonly associated with insufficient fiber intake, marasmus is severe malnutrition due to overall calorie deficiency, and diverticulitis is often related to low fiber intake and not specifically low fat consumption.

5. Which nutrients might people who follow a vegan diet be deficient in?

• A. Vitamin B12
• B. Vitamin C
• C. Vitamins A and D
• D. Calcium

Correct answer: C

Rationale: People who adhere to a vegan diet might indeed be deficient in vitamins A and D, which are primarily found in animal-derived foods. While vitamin B12 and calcium can also be lacking in a vegan diet, these were not choices given that would correctly answer the question. Vitamin C, on the other hand, is widely available in numerous plant-based foods, making it less likely for vegans to be deficient in it. Therefore, the correct answer is 'Vitamins A and D'. It's important to note that deficiencies can be avoided through careful meal planning or supplementation.

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