HESI LPN
LPN Nutrition Practice Test
1. 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.
2. What is the primary intervention for a child experiencing a tonic-clonic seizure?
- A. Administer intravenous fluids
- B. Place the child in a prone position
- C. Protect the child from injury
- D. Perform mouth-to-mouth resuscitation
Correct answer: C
Rationale: The primary intervention for a child experiencing a tonic-clonic seizure is to protect them from injury. Placing the child in a prone position can be dangerous as it may lead to further harm due to the risk of aspiration or airway obstruction. Administering intravenous fluids is not recommended during a seizure. Performing mouth-to-mouth resuscitation is also not indicated as the child will resume breathing spontaneously after the seizure stops. Ensuring the child's safety and preventing injury by removing harmful objects and cushioning their head is essential until the seizure subsides.
3. What will the treatment for a newly admitted child with cystic fibrosis center on?
- A. Chest physiotherapy
- B. Mucus-drying agents
- C. Prevention of diarrhea
- D. Insulin therapy
Correct answer: A
Rationale: The correct answer is A: Chest physiotherapy. Treatment for cystic fibrosis focuses on chest physiotherapy and aerosol medications to manage and clear thick pulmonary secretions. Chest physiotherapy helps loosen and clear mucus from the lungs, aiding in breathing and reducing the risk of infections. Mucus-drying agents (choice B) are not typically used in the treatment of cystic fibrosis as the goal is to help clear mucus, not dry it. Prevention of diarrhea (choice C) is not a primary focus in the treatment of cystic fibrosis. Insulin therapy (choice D) is not relevant to cystic fibrosis, which primarily affects the respiratory and digestive systems.
4. Which statement best describes the composition of most foods?
- A. Most foods contain a mixture of the three energy nutrients, with one or two predominating.
- B. Foods do not typically contain equal amounts of the three energy nutrients.
- C. Most foods contain mixtures of the three energy nutrients, although only one or two may predominate.
- D. Most foods contain all three energy nutrients in varying amounts.
Correct answer: C
Rationale: The correct answer is C. Most foods contain a mixture of the three energy nutrients (carbohydrates, proteins, fats), with one or two predominating. Choice A is correct because most foods do contain a combination of energy nutrients, with one or two types usually being predominant. Choice B is incorrect as foods typically do not contain equal amounts of carbohydrates, proteins, and fats. Choice D is incorrect because most foods contain all three energy nutrients, not just one or two types.
5. Parents of a 6-month-old child, diagnosed with iron deficiency anemia, ask why it was not diagnosed earlier. What should the nurse say?
- A. Are you sure your child has iron deficiency anemia?
- B. Maternal stores of iron are depleted at about 6 months.
- C. This anemia is caused by blood loss.
- D. The child may not have had it for a long time.
Correct answer: B
Rationale: The correct answer is B: 'Maternal stores of iron are depleted at about 6 months.' Iron deficiency anemia becomes apparent around 6 months of age when the infant's iron stores, primarily received from the mother during pregnancy, are depleted. This timing coincides with the introduction of solid foods, which may lack sufficient iron. Choices A, C, and D are incorrect because they do not address the specific reason why iron deficiency anemia is typically diagnosed around 6 months of age.
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