HESI LPN
HESI PN Nutrition Practice Exam
1. In the scientific method, a tentative solution to a problem is called a what?
- A. theory
- B. prediction
- C. hypothesis
- D. correlation
Correct answer: C
Rationale: In the scientific method, a hypothesis is a tentative solution or educated guess that is tested through research. A theory (choice A) is a well-substantiated explanation based on evidence and extensive testing. A prediction (choice B) is a statement about what will happen in the future based on existing knowledge. Correlation (choice D) refers to a mutual relationship between two or more things, indicating how they may change together but not providing a solution to a problem.
2. 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.
3. What is one function of water in the human body?
- A. Water provides calories for energy.
- B. Water helps transport nutrients and waste products.
- C. Water acts as a solvent for many biological reactions.
- D. Water maintains body temperature.
Correct answer: B
Rationale: The correct answer is B: Water helps transport nutrients and waste products. Water plays a crucial role in the body by aiding in the transportation of essential nutrients to cells and removing waste products. While water is essential for various metabolic processes, it does not provide calories for energy (choice A). Although water can act as a solvent for biological reactions (choice C), its primary function is not as a solvent. Additionally, while water does help in regulating body temperature to some extent, its main role is not to maintain body temperature (choice D).
4. How should a healthcare professional approach the care of a child with a newly diagnosed type 1 diabetes?
- A. Emphasize the importance of blood glucose monitoring
- B. Avoid insulin therapy
- C. Encourage a high-carbohydrate diet
- D. Recommend alternative therapies only
Correct answer: A
Rationale: Corrected Rationale: Emphasizing the importance of blood glucose monitoring is crucial for managing type 1 diabetes effectively. Monitoring blood glucose levels helps in maintaining optimal control of the condition, adjusting treatment plans as necessary, and preventing complications. Choice B is incorrect because insulin therapy is the mainstay treatment for type 1 diabetes to regulate blood sugar levels. Choice C is incorrect because while diet is important, encouraging a high-carbohydrate diet can lead to fluctuations in blood sugar levels. Choice D is incorrect because alternative therapies should not replace standard medical treatment like insulin therapy in type 1 diabetes management.
5. How should a healthcare professional manage a child with a newly inserted gastrostomy tube?
- A. Monitor for signs of infection
- B. Increase the child's fluid intake
- C. Restrict all oral intake
- D. Use only sterile equipment for feedings
Correct answer: A
Rationale: Monitoring for signs of infection at the gastrostomy site is crucial for ensuring proper care and preventing complications. This involves observing for redness, swelling, warmth, or drainage around the insertion site. Increasing the child's fluid intake (Choice B) may be beneficial for hydration but is not specifically related to managing a newly inserted gastrostomy tube. Restricting all oral intake (Choice C) is not necessary as long as the healthcare professional follows the recommended guidelines for feeding. While using sterile equipment for feedings (Choice D) is important, monitoring for signs of infection takes precedence in the immediate post-insertion period.
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