HESI LPN
Nutrition Final Exam
1. Non-nutrient substances found in plant foods that may demonstrate biological activity in the body are commonly known as ___
- A. Bioenhancements
- B. Inorganic fibers
- C. Phytochemicals
- D. Phytoactive chemicals
Correct answer: C
Rationale: Phytochemicals are bioactive compounds found in plant foods that may affect health. They are known for their potential health benefits, such as antioxidant and anti-inflammatory properties. Choices A, B, and D are incorrect. 'Bioenhancements' is not a term used to describe non-nutrient substances in plant foods. 'Inorganic fibers' do not refer to bioactive compounds found in plants. 'Phytoactive chemicals' is not a commonly used term in nutrition science to describe these compounds.
2. Which statement best describes the relationship between diet and chronic diseases?
- A. Diet has no impact on chronic diseases.
- B. A poor diet can increase the risk of developing chronic diseases.
- C. Diet is the sole cause of chronic diseases.
- D. A balanced diet can help prevent or manage chronic diseases.
Correct answer: B
Rationale: Choice B is the correct answer. A poor diet can increase the risk of developing chronic diseases due to the lack of essential nutrients or the presence of harmful components like excessive sugar, salt, or saturated fats. While diet plays a significant role in the development of chronic diseases, it is not the sole cause (choice C). Choice A is incorrect because diet does indeed have a significant impact on chronic diseases. Choice D is not the best answer as it does not acknowledge the negative impact of a poor diet on chronic diseases.
3. What is the main purpose of Recommended Dietary Allowances (RDAs)?
- A. To provide guidelines for nutrient intakes that meet the needs of most healthy people.
- B. To specify the minimum amount of nutrients required for survival.
- C. To establish maximum safe levels of nutrient intakes.
- D. To recommend specific nutrient intake levels to prevent chronic diseases.
Correct answer: A
Rationale: The main purpose of Recommended Dietary Allowances (RDAs) is to provide guidelines for nutrient intakes that meet the needs of most healthy people. Choice B is incorrect because RDAs aim beyond just survival requirements. Choice C is incorrect because establishing maximum safe levels is the role of Tolerable Upper Intake Levels (ULs). Choice D is incorrect because preventing chronic diseases is more associated with Dietary Reference Intakes (DRIs) like Adequate Intakes (AIs) and Tolerable Upper Intake Levels (ULs). Therefore, the correct answer is A.
4. An essential nutrient is one that ___
- A. must be made in large quantities by the body
- B. can only be synthesized by the body
- C. cannot be made in sufficient quantities by the body
- D. is used to synthesize other compounds in the body
Correct answer: C
Rationale: An essential nutrient is a substance that cannot be made in sufficient quantities by the body itself, so it must be obtained from the diet. Choice A is incorrect because essential nutrients are required in specific amounts, not necessarily large quantities. Choice B is incorrect as essential nutrients cannot be synthesized by the body at all. Choice D is incorrect because although essential nutrients may be used in the synthesis of other compounds, that is not the defining characteristic of an essential nutrient.
5. What should be assessed in a child with suspected appendicitis?
- A. Level of consciousness
- B. Bowel sounds and pain location
- C. Skin color and temperature
- D. Heart rate and blood pressure
Correct answer: B
Rationale: The correct answer is to assess bowel sounds and pain location. In a child with suspected appendicitis, focusing on bowel sounds and pain location, particularly in the lower right quadrant, is crucial. This assessment helps to identify symptoms commonly associated with appendicitis. Assessing the level of consciousness (Choice A) is important in other conditions such as head injuries or neurological issues. Skin color and temperature (Choice C) are more indicative of circulatory or skin-related problems. Heart rate and blood pressure (Choice D) are vital signs that are essential to assess in various conditions but are not specific to suspected appendicitis.
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