HESI LPN
Nutrition Final Exam
1. How should a caregiver handle a child with a known peanut allergy?
- A. Educate on allergen avoidance
- B. Increase exposure to peanuts
- C. Administer antihistamines as needed
- D. Suggest occasional consumption of peanuts
Correct answer: A
Rationale: Educating on allergen avoidance is the correct approach when dealing with a child who has a known peanut allergy. This helps in managing the allergy effectively and preventing potential allergic reactions. Increasing exposure to peanuts (Choice B) is dangerous and can trigger severe allergic reactions in a child with a peanut allergy. While antihistamines (Choice C) can help alleviate some symptoms, they should not be the primary method of managing a peanut allergy. Suggesting occasional consumption of peanuts (Choice D) is extremely risky and should never be done for a child with a known peanut allergy.
2. In what position does the Pavlik harness hold a child's femurs for developmental hip dysplasia?
- A. Abduction
- B. Adduction
- C. Flexion
- D. Extension
Correct answer: A
Rationale: The Pavlik harness is designed to position a child's femurs in abduction for developmental hip dysplasia. Abduction helps align the hip joint correctly and promotes proper development in cases of hip dysplasia. Adduction (choice B) brings the legs closer to the midline, which is not the desired position in this condition. Flexion (choice C) refers to bending at a joint, while extension (choice D) is the opposite of flexion. However, in the case of developmental hip dysplasia, abduction is crucial for the Pavlik harness to work effectively.
3. Which characteristic is most typical of a chronic disease?
- A. It has a rapid onset.
- B. It rarely has noticeable symptoms.
- C. It produces sharp pains.
- D. It progresses gradually.
Correct answer: D
Rationale: The correct answer is D. Chronic diseases are characterized by a gradual progression over time, affecting individuals for an extended period. Option A is incorrect as chronic diseases do not have a rapid onset like acute conditions. Option B is incorrect as chronic diseases often manifest noticeable symptoms. Option C is incorrect as sharp pains are not a defining characteristic of chronic diseases. Chronic diseases can present a variety of symptoms depending on the specific condition, but gradual progression is a common feature distinguishing them from acute illnesses.
4. What is one major weakness of a laboratory-based study?
- A. The costs are typically prohibitive.
- B. Findings are difficult to replicate.
- C. Results from animal testing cannot be applied to human beings.
- D. Experimental variables cannot be easily controlled.
Correct answer: C
Rationale: One major weakness of laboratory-based studies is that results from animal testing cannot always be applied to human beings. This limitation arises due to the inherent biological differences between animals and humans, making the generalization of findings challenging. While costs may be a concern in some cases, they do not represent a universal weakness of laboratory-based studies. Findings in such studies can be replicated to ensure validity, and experimental variables can be effectively controlled in a laboratory setting. Choice C is the correct answer because the translatability of results from animal studies to humans is a significant challenge in laboratory-based research, impacting the direct application of findings to human health and well-being.
5. Which of the following best describes the purpose of dietary guidelines?
- A. To ensure food safety and sanitation.
- B. To promote overall health and reduce the risk of chronic diseases.
- C. To prevent foodborne illnesses.
- D. To provide recommendations for physical activity.
Correct answer: B
Rationale: The correct answer is B: 'To promote overall health and reduce the risk of chronic diseases.' Dietary guidelines aim to improve public health by providing recommendations on dietary patterns and nutrient intake. While ensuring food safety and sanitation (choice A) is important, it is not the primary purpose of dietary guidelines. Preventing foodborne illnesses (choice C) is more related to food safety practices rather than dietary guidelines. Recommendations for physical activity (choice D) are important for overall health but are separate from dietary guidelines, which primarily focus on nutrition.
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