HESI LPN
HESI PN Nutrition Practice Exam
1. What does the term 'essential nutrient' refer to?
- A. A nutrient that can be synthesized by the body.
- B. A nutrient that is required for proper body functioning.
- C. A nutrient that must be obtained from the diet because the body cannot produce it.
- D. A nutrient that can be stored in the body for long periods.
Correct answer: C
Rationale: The correct answer is C. An essential nutrient is a substance that is necessary for normal body functioning but cannot be synthesized in adequate amounts by the body, therefore it must be obtained from the diet. Choices A, B, and D are incorrect because essential nutrients are not synthesized by the body, they are necessary for body functioning, and they are not typically stored in the body for long periods.
2. What is a causative factor of Hirschsprung disease?
- A. Frequent evacuation of solids, liquids, and gases
- B. Excessive peristaltic movement
- C. Absence of parasympathetic ganglion cells in a portion of the colon
- D. One portion of the bowel telescoping into another
Correct answer: C
Rationale: The correct answer is C: Absence of parasympathetic ganglion cells in a portion of the colon. Hirschsprung disease is a congenital condition characterized by the absence of nerve cells (ganglia) in parts of the colon. This absence leads to a lack of peristalsis in the affected segment, resulting in severe constipation and bowel obstruction. Choices A, B, and D are incorrect. Choice A describes symptoms of diarrhea rather than a causative factor of Hirschsprung disease. Excessive peristaltic movement (choice B) is not a causative factor but rather the opposite, as Hirschsprung disease is associated with reduced peristalsis. Choice D, which refers to intussusception, is a different condition unrelated to Hirschsprung disease.
3. How should hydration status in a child with fever and vomiting be assessed?
- A. Monitor skin turgor and mucous membranes
- B. Measure blood glucose levels
- C. Check for signs of jaundice
- D. Assess respiratory rate
Correct answer: A
Rationale: To assess hydration status in a child with fever and vomiting, monitoring skin turgor and mucous membranes is essential. Skin turgor refers to the skin's ability to change shape and return to normal; poor skin turgor can indicate dehydration. Mucous membranes, such as the mouth and eyes, can also provide valuable information about hydration levels. Measuring blood glucose levels (Choice B) is not directly related to assessing hydration status. Checking for signs of jaundice (Choice C) is important for liver-related issues, not hydration assessment. Assessing respiratory rate (Choice D) is crucial for evaluating respiratory function, not hydration status.
4. In what position should infants be placed to sleep to reduce the risk of sudden infant death syndrome (SIDS)?
- A. Right side-lying
- B. Left side-lying
- C. Prone
- D. Supine
Correct answer: D
Rationale: The American Academy of Pediatrics recommends placing infants on their backs (supine) to sleep to reduce the risk of sudden infant death syndrome (SIDS). This position has been shown to decrease the likelihood of SIDS occurrence. Placing infants on their right or left side (choices A and B) or prone (choice C) can increase the risk of SIDS as it may obstruct the infant's airway or lead to overheating, which are known risk factors for SIDS.
5. 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.
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