HESI LPN
Nutrition Final Exam
1. How much energy is required to raise the temperature of one kilogram of water by 1°C?
- A. 10 calories
- B. 100 calories
- C. 1 kilocalorie
- D. 10 kilocalories
Correct answer: C
Rationale: The correct answer is 1 kilocalorie. This is the amount of energy required to raise the temperature of 1 kilogram of water by 1°C. Choice A (10 calories) and Choice D (10 kilocalories) are incorrect as they do not represent the correct unit of measurement for this specific scenario. Choice B (100 calories) is also incorrect as it overestimates the amount of energy required. The specific heat capacity of water is approximately 1 calorie/gram °C, which means that 1 kilogram (1000 grams) of water requires 1 kilocalorie (1000 calories) to raise its temperature by 1°C.
2. What is an important nursing intervention for a child with a newly inserted central venous catheter?
- A. Regularly monitor for signs of infection
- B. Administer intravenous fluids only as ordered
- C. Restrict the child's movement
- D. Perform daily dressing changes only
Correct answer: A
Rationale: Regularly monitoring for signs of infection is a critical nursing intervention for a child with a newly inserted central venous catheter. This intervention is essential to detect any early signs of infection, such as redness, swelling, or drainage at the catheter site, which can lead to serious complications like sepsis. Administering intravenous fluids as ordered is important but not the most crucial intervention for a newly inserted central venous catheter. Restricting the child's movement is unnecessary unless specified by the healthcare provider. Performing daily dressing changes alone is not sufficient to ensure the catheter's integrity and the child's safety; monitoring for signs of infection is key.
3. How should a healthcare provider respond to a parent concerned about their child's sleep pattern?
- A. Recommend a sleep study
- B. Suggest increasing daytime naps
- C. Provide education on sleep hygiene
- D. Advise on medication use
Correct answer: C
Rationale: When a parent expresses concerns about their child's sleep pattern, providing education on sleep hygiene is a beneficial response. Teaching parents about establishing a consistent sleep routine, creating a conducive sleep environment, and promoting healthy sleep habits can help address the child's sleep issues. This empowers the parent to make positive changes that can improve the child's sleep patterns. Recommending a sleep study (Choice A) may be premature and unnecessary without first addressing basic sleep hygiene. Suggesting increasing daytime naps (Choice B) may not always be appropriate and could further disrupt the child's nighttime sleep. Advising on medication use (Choice D) should be considered only after other non-pharmacological approaches have been tried and if deemed necessary by a healthcare provider.
4. What is critical for preventing complications in an infant with hypothyroidism?
- A. Excessive growth
- B. Cognitive impairment
- C. Damage to the nervous system
- D. Damage to the urinary system
Correct answer: B
Rationale: The correct answer is B: Cognitive impairment. In infants with hypothyroidism, prompt administration of oral thyroid hormone replacement is crucial to prevent cognitive impairment and other serious complications. Excessive growth (choice A) is not a typical complication of hypothyroidism in infants. While hypothyroidism can affect the nervous system (choice C), cognitive impairment is more specific to untreated cases. Damage to the urinary system (choice D) is not a common complication of hypothyroidism in infants.
5. How should a healthcare provider handle a child with a suspected head injury who is showing signs of drowsiness?
- A. Administer pain medication
- B. Perform a full neurological assessment
- C. Allow the child to sleep
- D. Contact a specialist immediately
Correct answer: B
Rationale: When a child with a suspected head injury is showing signs of drowsiness, administering pain medication should not be the first course of action as it may mask important symptoms. Allowing the child to sleep is not recommended as they need to be monitored. Contacting a specialist immediately may delay necessary assessments. Performing a full neurological assessment is the most appropriate action because it helps evaluate the head injury's extent, identify neurological deficits, and guide further intervention or treatment.
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