HESI LPN
LPN Nutrition Practice Test
1. What action should be taken for a 2-year-old with laryngotracheobronchitis in an oxygen tent?
- A. Restrain the child and notify the healthcare provider
- B. Increase the oxygen concentration
- C. Take the child to the playroom
- D. Ask the mother to help in comforting the child
Correct answer: B
Rationale: In laryngotracheobronchitis (croup), a child may become restless due to poor oxygenation. Increasing the oxygen concentration in the oxygen tent is crucial to improve oxygenation levels and manage symptoms effectively. Restraint is not appropriate in this situation, as it may cause distress and worsen the child's condition. Taking the child to the playroom is not indicated when the child requires oxygen therapy. While comforting the child is important, the priority in this scenario is to optimize oxygen delivery to improve respiratory distress.
2. Which of the following is a common complication of an untreated inguinal hernia in children?
- A. Gastroenteritis
- B. Strangulation of the hernia
- C. Chronic cough
- D. Epistaxis
Correct answer: B
Rationale: The correct answer is B: Strangulation of the hernia. Untreated inguinal hernias in children can lead to strangulation, which can result in bowel obstruction and ischemia. This is a serious complication that requires prompt medical attention. Choices A, C, and D are incorrect. Gastroenteritis is a gastrointestinal infection that is not directly related to untreated inguinal hernias. Chronic cough is not typically associated with this condition. Epistaxis refers to nosebleeds, which are not a common complication of untreated inguinal hernias in children.
3. What is one benefit of using controls in an experiment?
- A. The size of the groups does not matter.
- B. The subjects are unaware of the experiment's details.
- C. The subjects who are treated are balanced against the placebos.
- D. The subjects are similar in all respects except for the treatment being tested.
Correct answer: D
Rationale: The correct answer is D. Controls in an experiment ensure that the subjects are similar in all respects except for the treatment being tested. This allows for a fair comparison between the treatment group and the control group. Choice A is incorrect because the size of the groups is not the primary benefit of using controls. Choice B is incorrect as blinding, not controls, refers to subjects not knowing about the experiment. Choice C is incorrect as it pertains more to randomization than the use of controls.
4. What is an important consideration when caring for a child with epilepsy?
- A. Adherence to prescribed anticonvulsant medication
- B. Avoiding all forms of exercise
- C. Limiting social interactions
- D. Increasing dietary caffeine intake
Correct answer: A
Rationale: Adherence to prescribed anticonvulsant medication is crucial when caring for a child with epilepsy. It is essential for managing the condition effectively and reducing the frequency of seizures. Choice B is incorrect because exercise, when done safely and under supervision, can be beneficial for children with epilepsy by promoting overall health. Choice C is incorrect as social interactions are important for the child's emotional well-being and should not be limited. Choice D is incorrect as increasing dietary caffeine intake can potentially trigger seizures in some individuals with epilepsy.
5. What is the term for the study of how diet affects gene expression?
- A. Epigenetics
- B. Nutrigenomics
- C. Genomics
- D. Genetics
Correct answer: B
Rationale: Nutrigenomics is the study of how diet affects gene expression, influencing health outcomes and disease risk. Epigenetics (choice A) involves changes in gene expression or cellular phenotype caused by mechanisms other than changes in the underlying DNA sequence. Genomics (choice C) is the study of an organism's entire genome. Genetics (choice D) is the study of heredity and the variation of inherited characteristics.
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