HESI LPN
HESI PN Nutrition Practice Exam
1. Which nutrient is an organic compound?
- A. salt
- B. water
- C. calcium
- D. vitamin C
Correct answer: D
Rationale: Vitamin C is the correct answer because it is an organic compound containing carbon, which is a defining characteristic of organic compounds. Salt (choice A), water (choice B), and calcium (choice C) are inorganic compounds that do not contain carbon. Inorganic compounds are typically lacking carbon-hydrogen bonds, unlike organic compounds. Therefore, choices A, B, and C are incorrect in the context of being organic compounds.
2. What is a causative factor of Hirschsprung disease?
- A. Frequent evacuation of solids, liquids, and gases
- B. Excessive peristaltic movement
- C. Absence of parasympathetic ganglion cells in a portion of the colon
- D. One portion of the bowel telescoping into another
Correct answer: C
Rationale: The correct answer is C: Absence of parasympathetic ganglion cells in a portion of the colon. Hirschsprung disease is a congenital condition characterized by the absence of nerve cells (ganglia) in parts of the colon. This absence leads to a lack of peristalsis in the affected segment, resulting in severe constipation and bowel obstruction. Choices A, B, and D are incorrect. Choice A describes symptoms of diarrhea rather than a causative factor of Hirschsprung disease. Excessive peristaltic movement (choice B) is not a causative factor but rather the opposite, as Hirschsprung disease is associated with reduced peristalsis. Choice D, which refers to intussusception, is a different condition unrelated to Hirschsprung disease.
3. How should a caregiver manage a child with a new diagnosis of sickle cell anemia?
- A. Ensure the child receives frequent blood transfusions
- B. Promote adequate hydration and pain management
- C. Restrict physical activity
- D. Administer high doses of vitamin C
Correct answer: B
Rationale: Promoting adequate hydration and pain management is crucial for managing sickle cell anemia to prevent crises and complications. Adequate hydration helps prevent sickling of red blood cells, while effective pain management is essential for addressing the frequent pain episodes associated with the condition. Ensuring the child receives frequent blood transfusions is not the initial management for sickle cell anemia; transfusions are usually reserved for specific complications. Restricting physical activity should be individualized based on the child's condition; some physical activity is beneficial for overall health. Administering high doses of vitamin C is not a standard treatment for sickle cell anemia and does not address the underlying pathology of the disease.
4. What is a key intervention for a child with a new diagnosis of type 1 diabetes?
- A. Insulin administration
- B. Increased dietary fat intake
- C. Restricted fluid intake
- D. Routine physical examinations only
Correct answer: A
Rationale: The correct answer is A: Insulin administration. When a child is diagnosed with type 1 diabetes, insulin administration is a crucial intervention. Insulin helps regulate blood glucose levels by enabling cells to take in glucose from the bloodstream. Without sufficient insulin, blood glucose levels can become dangerously high, leading to various complications. Increased dietary fat intake (choice B) is not a recommended intervention for type 1 diabetes management, as it can contribute to weight gain and other health issues. Restricted fluid intake (choice C) is also not appropriate, as adequate hydration is essential for overall health. Routine physical examinations (choice D) are important but are not the primary intervention needed to manage type 1 diabetes.
5. 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).
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