each correlation between vitamin d and sun exposure is accurate except one which is the exception

ATI RN

ATI Nutrition Proctored Exam

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 food items should be avoided by a child with lactose intolerance?

A. Popcorn, seeds, and any foods containing nuts.
B. Milk, cheese, ice cream, and puddings.
C. Wheat, rye, barley, and commercially baked goods.
D. Eggs, ham, bacon, and canned meats.

Correct answer: B

Rationale: The correct answer is B: Milk, cheese, ice cream, and puddings should be avoided by a child with lactose intolerance because they contain lactose, which the child's body may have difficulty digesting. Option A is incorrect as popcorn, seeds, and foods containing nuts do not typically contain lactose. Option C lists wheat, rye, barley, and commercially baked goods, which are sources of gluten, not lactose. Option D includes eggs, ham, bacon, and canned meats, which are also not sources of lactose. Therefore, B is the most appropriate choice for a child with lactose intolerance.

3. A nurse is providing anticipatory guidance to a client who has Phenylketonuria (PKU) and is planning a pregnancy. Which of the following information should the nurse include in the discussion?

A. Diet sodas should not be consumed more than two or three times a week.
B. Serum bilirubin should be monitored once or twice a month during pregnancy.
C. Breastfeeding will not prevent your baby from developing PKU.
D. A low-protein diet should be followed for three months before conception.

Correct answer: D

Rationale: A low-protein diet should be followed for three months before conception in individuals with PKU who are planning a pregnancy. This diet helps manage PKU by reducing phenylalanine levels, which is crucial for maternal and fetal health. Choices A, B, and C are incorrect. Choice A is not directly related to managing PKU, choice B focuses on a different aspect of care during pregnancy, and choice C is inaccurate as breastfeeding will not prevent a baby from developing PKU.

4. Which risk factors increase the risk of atherosclerosis?

A. Exercise
B. Excessive sun exposure
C. Insufficient vaccinations
D. Smoking

Correct answer: D

Rationale: Smoking is a major risk factor for atherosclerosis. It significantly contributes to the buildup of plaque in the arteries and thereby increases the risk of cardiovascular diseases. On the other hand, exercise is generally beneficial for cardiovascular health and is not a risk factor for atherosclerosis. Excessive sun exposure and insufficient vaccinations have no established links to atherosclerosis, making them incorrect options for this question.

5. What is the term for a condition where one or more members of a household, including children, consistently have little or no food due to lack of money?

A. Marginal Food Security
B. Food Desert
C. Very Low Food Security
D. Food Insecurity

Correct answer: D

Rationale: The correct answer is 'D: Food Insecurity'. This term specifically describes a situation where household members consistently have inadequate access to food due to financial constraints. 'Marginal Food Security' (Choice A) refers to a situation where the quality or variety of food is reduced, but there is no significant decrease in food intake. A 'Food Desert' (Choice B) is an area with limited access to affordable and nutritious food. 'Very Low Food Security' (Choice C) is a term used to describe a severe level of food insecurity where eating patterns of household members are disrupted and food intake is reduced.