HESI LPN
HESI PN Nutrition Practice Exam
1. You have been asked to help a top nutrition researcher conduct human experiments on vitamin C. As the subjects walk into the laboratory, you distribute all the vitamin C pill bottles to the girls and all the placebo pill bottles to the boys. What should you have done?
- A. Giving all the boys the vitamin C and the girls the placebo, and telling them what they were getting.
- B. Distributing the bottles randomly, randomizing the subjects, and telling them what they were getting.
- C. Telling the subjects which group they were in, but preventing yourself from knowing the contents of the pill bottles.
- D. Preventing yourself from knowing what is in the pill bottles, and distributing the bottles randomly to the subjects.
Correct answer: D
Rationale: The correct approach in a scientific experiment is to prevent yourself from knowing the contents of the pill bottles and distribute them randomly to the subjects. This randomization helps to avoid bias and ensures that the results are not influenced by preconceived notions. Option A is incorrect because it introduces gender bias by assigning pills based on gender. Option B is incorrect as it mentions telling the subjects what they are getting, which could lead to placebo effects. Option C is incorrect as it suggests disclosing group information to the subjects, which can also introduce bias.
2. What term describes foods that contain non-nutrient substances whose known action in the body is to promote well-being to a greater extent than that contributed by the food's nutrients?
- A. fortified foods
- B. enriched foods
- C. functional foods
- D. health-enhancing foods
Correct answer: C
Rationale: Functional foods are specifically designed to promote health benefits beyond basic nutrition. Fortified foods (choice A) are those with added nutrients that are not originally present, enriched foods (choice B) have nutrients added back that were lost during processing, and health-enhancing foods (choice D) is a vague and less specific term compared to functional foods.
3. What is a key sign of meningitis in an infant?
- A. Increased appetite
- B. Bulging fontanel
- C. Decreased respiratory rate
- D. Elevated blood pressure
Correct answer: B
Rationale: A bulging fontanel is a key sign of meningitis in infants, indicating increased intracranial pressure due to inflammation of the meninges. This can lead to the fontanel bulging. Choices A, C, and D are incorrect. Increased appetite is not typically associated with meningitis in infants; instead, they may have poor feeding. A decreased respiratory rate is not a common sign of meningitis in infants. Elevated blood pressure is also not a typical finding in infants with meningitis.
4. What is a key aspect of managing a child with eczema?
- A. Daily baths with soap
- B. Regular use of emollients and moisturizers
- C. High-protein diet
- D. Frequent exposure to sunlight
Correct answer: B
Rationale: Regular use of emollients and moisturizers is a key aspect of managing eczema in children. Emollients help maintain skin hydration and reduce irritation, which are crucial in managing eczema symptoms. Daily baths with soap can actually worsen eczema by drying out the skin further. A high-protein diet and frequent exposure to sunlight are not directly related to managing eczema and may not have a significant impact on the condition.
5. What is a common complication of untreated type 1 diabetes in children?
- A. Diabetic ketoacidosis
- B. High blood pressure
- C. Asthma
- D. Frequent infections
Correct answer: A
Rationale: Diabetic ketoacidosis is a serious complication of untreated type 1 diabetes in children. It is characterized by high blood sugar levels, ketones in the urine, and acidosis. Prompt medical attention is required to manage this condition. High blood pressure (Choice B) can be a complication of diabetes but is not as directly linked to untreated type 1 diabetes as diabetic ketoacidosis. Asthma (Choice C) and frequent infections (Choice D) are not typically associated with untreated type 1 diabetes in children.
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