HESI LPN
HESI PN Nutrition Practice Exam
1. You have been asked to help a top nutrition researcher conduct human experiments on vitamin C. As the subjects walk into the laboratory, you distribute all the vitamin C pill bottles to the girls and all the placebo pill bottles to the boys. What should you have done?
- A. Giving all the boys the vitamin C and the girls the placebo, and telling them what they were getting.
- B. Distributing the bottles randomly, randomizing the subjects, and telling them what they were getting.
- C. Telling the subjects which group they were in, but preventing yourself from knowing the contents of the pill bottles.
- D. Preventing yourself from knowing what is in the pill bottles, and distributing the bottles randomly to the subjects.
Correct answer: D
Rationale: The correct approach in a scientific experiment is to prevent yourself from knowing the contents of the pill bottles and distribute them randomly to the subjects. This randomization helps to avoid bias and ensures that the results are not influenced by preconceived notions. Option A is incorrect because it introduces gender bias by assigning pills based on gender. Option B is incorrect as it mentions telling the subjects what they are getting, which could lead to placebo effects. Option C is incorrect as it suggests disclosing group information to the subjects, which can also introduce bias.
2. What is a common sign of congenital hip dysplasia in infants?
- A. Symmetrical hip movement
- B. Limited range of motion in the hip
- C. Swelling of the knees
- D. Dislocated patella
Correct answer: B
Rationale: Limited range of motion in the hip, often noted as a limitation in abduction, is a common sign of congenital hip dysplasia. This limitation is due to the abnormal development of the hip joint, affecting its movement. Symmetrical hip movement (Choice A) is not a characteristic sign of congenital hip dysplasia. Swelling of the knees (Choice C) is not typically associated with this condition. Dislocated patella (Choice D) refers to a different anatomical structure and is not a common sign of congenital hip dysplasia.
3. How should a healthcare professional address the concerns of parents about their child’s developmental delay?
- A. Recommend immediate diagnostic testing
- B. Suggest waiting for natural development
- C. Provide information about early intervention services
- D. Advise on increasing physical activity
Correct answer: C
Rationale: When addressing concerns about a child's developmental delay, providing information about early intervention services is crucial as it can facilitate timely support and resources. This option helps parents understand the available support systems and interventions for their child. Recommending immediate diagnostic testing may cause unnecessary anxiety without first exploring other supportive options. Suggesting waiting for natural development could result in missed opportunities for early intervention that are crucial for improving developmental outcomes. Advising on increasing physical activity is not directly related to addressing developmental delays and does not address the core issue of developmental delay.
4. After surgical repair of a cleft palate, what should be used to prevent injury to the suture line?
- A. Straw
- B. Spoon
- C. Syringe
- D. Cup
Correct answer: C
Rationale: The correct answer is C: Syringe. Using a syringe helps in feeding without causing injury to the suture line after cleft palate repair because it avoids direct contact with the suture area. Straws and spoons can potentially put pressure on the suture line, leading to injury. Cups may not provide the necessary control to prevent contact with the suture line, unlike a syringe.
5. What is the main purpose of the initial assessment of a child with a suspected fracture?
- A. To determine the type of fracture
- B. To check for potential complications
- C. To identify the cause of the injury
- D. To plan for long-term rehabilitation
Correct answer: B
Rationale: The main purpose of the initial assessment of a child with a suspected fracture is to check for potential complications, such as neurovascular impairment, and to ensure appropriate treatment. Choice A is incorrect because determining the type of fracture usually requires imaging studies like X-rays, which may not be part of the initial assessment. Choice C is incorrect because identifying the cause of the injury is important for the history-taking part but may not be the main purpose of the initial assessment. Choice D is incorrect because long-term rehabilitation planning typically occurs after the acute phase of fracture management.
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