ATI RN
ATI Nutrition Practice A
1. An elderly man is hospitalized with a diagnosis of malnutrition three months following his wife's death. What risk factor for malnutrition does this scenario illustrate?
- A. A history of chronic illness
- B. Depression or social isolation
- C. Age
- D. Impaired mobility
Correct answer: B
Rationale: This scenario illustrates depression or social isolation as a risk factor for malnutrition. After the death of his wife, the elderly man may have experienced depression or social isolation, which can lead to decreased food intake and poor nutritional status. Although age, chronic illness, and impaired mobility can also contribute to malnutrition, they are not the primary factors described in this scenario. The history of chronic illness (Choice A) and impaired mobility (Choice D) were not mentioned in the scenario, and while age (Choice C) is a factor, it's not the main factor depicted in this case.
2. In persons who are obese, weight reduction can improve such CHD risk factors as hypertension, blood lipid abnormalities, and?
- A. inflammation
- B. insulin resistance
- C. gastrointestinal motility disorders
- D. damage from cigarette smoking
Correct answer: B
Rationale: Weight reduction in obese individuals can improve insulin resistance, a key factor in reducing the risk of coronary heart disease and type 2 diabetes.
3. What is the most common type of kidney stone?
- A. Cystine
- B. Calcium
- C. Struvite
- D. Uric acid
Correct answer: B
Rationale: The most common type of kidney stone is calcium-based, specifically calcium oxalate. This is usually due to high calcium levels in the urine, which can be caused by dietary factors or certain metabolic disorders. Cystine stones, on the other hand, are less common and occur in individuals with a hereditary disorder leading to excessive excretion of certain amino acids. Struvite stones are often formed in response to an infection. Uric acid stones may occur in individuals who do not consume sufficient fluids or who lose too much fluid, among other factors. Therefore, while all these substances can form stones in the kidneys, calcium stones are the most common.
4. Each of the following is a function of vitamin A, except one. Which is the exception?
- A. Prevention of night blindness
- B. Growth of soft tissues and bone
- C. Maintenance of more than 200 genes
- D. Integrity of body openings and their linings
Correct answer: C
Rationale: The correct answer is C. Maintenance of more than 200 genes is not a function of vitamin A; instead, it is a function of Vitamin D. Vitamin A plays a crucial role in the prevention of night blindness by aiding in the production of the visual pigment rhodopsin. It also supports the growth of soft tissues and bone, as well as the integrity of body openings and their linings. Choice C is incorrect because the maintenance of genes is primarily associated with Vitamin D, not Vitamin A.
5. Which individual would be at the greatest risk for deficiencies in water-soluble vitamins?
- A. An individual who regularly consumes fruits and vegetables.
- B. An individual with a high intake of dairy products.
- C. An individual who consumes a diet high in processed foods.
- D. An individual who frequently eats organ meats.
Correct answer: C
Rationale: The correct answer is 'An individual who consumes a diet high in processed foods.' Processed foods are often deficient in water-soluble vitamins such as vitamin C and B vitamins, which can lead to deficiencies. On the other hand, fruits, vegetables, and organ meats are rich sources of these vitamins, so individuals who consume these regularly are less likely to develop deficiencies. While dairy products do contain some water-soluble vitamins, they are not depleted as quickly as they are in a diet high in processed foods, making a deficiency less likely.
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