HESI LPN
HESI PN Nutrition Practice Exam
1. 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.
2. A client with type 1 diabetes is experiencing symptoms of hypoglycemia. What is the nurse's priority intervention?
- A. Administer glucagon intramuscularly
- B. Provide a complex carbohydrate snack
- C. Administer 50% dextrose intravenously
- D. Give 15 grams of a fast-acting carbohydrate
Correct answer: D
Rationale: The priority intervention for a client with type 1 diabetes experiencing symptoms of hypoglycemia is to give 15 grams of a fast-acting carbohydrate. In a hypoglycemic state, the priority is to quickly raise the blood glucose level. Administering glucagon intramuscularly (Choice A) is reserved for severe hypoglycemia when the client is unable to take oral carbohydrates. Providing a complex carbohydrate snack (Choice B) is beneficial after the initial treatment of hypoglycemia to prevent recurrence. Administering 50% dextrose intravenously (Choice C) is a more invasive intervention typically done in a hospital setting for severe cases.
3. An elderly client with Alzheimer's disease is being admitted to a long-term care facility. The client’s spouse expresses concern about the level of care the client will receive. What is the most appropriate response by the nurse?
- A. Reassure the spouse that the client will be well cared for and provide information about the facility’s care practices.
- B. Inform the spouse that care will be adjusted based on the client’s condition and needs.
- C. Advise the spouse to visit frequently to monitor the quality of care the client receives.
- D. Suggest that the spouse speak with other family members for reassurance.
Correct answer: A
Rationale: The most appropriate response by the nurse in this situation is to reassure the spouse that the client will be well cared for and provide information about the facility’s care practices. This response not only addresses the spouse's concerns directly but also helps in building trust and confidence in the care provided. Choice B is not ideal as it may cause unnecessary worry about the fluctuating care levels. Choice C puts the responsibility on the spouse to monitor care, which may not always be feasible or appropriate. Choice D deflects the concern to other family members instead of addressing the spouse's worries directly.
4. When designing a community health project based on a report provided by the World Health Organization that describes healthcare problems in the United States, which healthcare issue should the nurse prioritize the highest when planning the project?
- A. Overuse of diagnostic technology.
- B. Government-based health insurance.
- C. The neonatal and infant mortality rates.
- D. Number of people without access to health care.
Correct answer: C
Rationale: The neonatal and infant mortality rates should be given the highest priority when planning the project because they are critical indicators of the overall health and healthcare system's effectiveness. High neonatal and infant mortality rates signify underlying issues in prenatal care, access to healthcare services, and quality of care for newborns and infants. Choice A, overuse of diagnostic technology, though important, may not be as critical as addressing neonatal and infant mortality rates. Choice B, government-based health insurance, is significant but may not directly impact neonatal and infant mortality rates. Choice D, the number of people without access to healthcare, is a crucial issue, but addressing neonatal and infant mortality rates should take precedence due to their immediate impact on the health and well-being of the most vulnerable population.
5. An infant is diagnosed with Hirschsprung disease. What nursing intervention is essential before surgery?
- A. Administering antibiotics
- B. Ensuring bowel rest
- C. Performing regular enemas
- D. Maintaining NPO status
Correct answer: D
Rationale: Maintaining NPO (nothing by mouth) status is essential before surgery for a patient with Hirschsprung disease to prevent aspiration. Administering antibiotics, ensuring bowel rest, and performing regular enemas are not the priority interventions before surgery for this condition. Administering antibiotics may be necessary in the postoperative period to prevent infection, ensuring bowel rest can be beneficial but is not the priority, and performing regular enemas is not typically recommended before surgery for Hirschsprung disease.