HESI LPN
Nutrition Final Exam Quizlet
1. What is a key intervention for a child with a new diagnosis of asthma?
- A. Provide a peak flow meter
- B. Limit all physical activity
- C. Increase dairy consumption
- D. Recommend frequent use of nasal decongestants
Correct answer: A
Rationale: The correct answer is A: Provide a peak flow meter. Providing a peak flow meter is crucial for a child with a new diagnosis of asthma as it helps monitor asthma control and manage symptoms by tracking changes in airflow. This device assists in assessing how well the lungs are functioning and guides treatment decisions. Limiting all physical activity (choice B) is not recommended as regular exercise can actually help improve lung function in asthmatic children. Increasing dairy consumption (choice C) is not a key intervention for asthma, and recommending frequent use of nasal decongestants (choice D) is not suitable for asthma management in children.
2. What is a common sign of dehydration in infants?
- A. Decreased urination
- B. Dry mouth and lips
- C. Increased appetite
- D. Normal skin turgor
Correct answer: B
Rationale: Dry mouth and lips are common signs of dehydration in infants. When an infant is dehydrated, the body conserves water, resulting in less urine production and concentrated urine. This leads to decreased frequency of urination rather than frequent urination, making choice A incorrect. Choice C, increased appetite, is not typically associated with dehydration in infants but rather with normal growth and development. Normal skin turgor, as mentioned in choice D, is a sign of hydration and not dehydration, making it an incorrect choice. Therefore, the correct answer is B, dry mouth and lips, which indicate a need for fluid replacement.
3. Why is randomization important in a scientific experiment?
- A. To minimize the impact of confounding variables.
- B. To eliminate bias in the assignment of subjects to groups.
- C. To contribute to the accuracy and validity of the experiment's results.
- D. To prevent systematic differences between groups.
Correct answer: B
Rationale: Randomization is crucial in a scientific experiment to eliminate bias in the assignment of subjects to groups. By randomly assigning subjects, it helps ensure that any differences observed in the outcomes are due to the experimental treatment and not to preexisting differences between groups. Choice A is incorrect because randomization does not guarantee representativeness but rather minimizes the impact of confounding variables. Choice C is not entirely accurate; while randomization can contribute to accuracy and validity, its primary purpose is to reduce bias. Choice D is incorrect as the goal of randomization is not to balance the number of subjects but to prevent systematic differences between groups.
4. 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.
5. What should be assessed in an infant diagnosed with hypertrophic pyloric stenosis?
- A. Diarrhea after each feeding
- B. Gastric pain and vigorous crying
- C. Poor appetite due to poor sucking reflex
- D. An olive-shaped mass right of the midline
Correct answer: D
Rationale: In hypertrophic pyloric stenosis, an olive-shaped mass can often be palpated in the infant's abdomen, which is a hallmark sign of this condition. This mass is located in the right upper quadrant of the abdomen, right of the midline. Choices A, B, and C are incorrect because while infants with hypertrophic pyloric stenosis may experience vomiting (not diarrhea), gastric pain, and irritability, and have feeding difficulties, the key assessment finding specific to this condition is the palpable olive-shaped mass in the abdomen.
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