HESI LPN
Pediatric HESI 2023
1. A 12-month-old infant has become immunosuppressed during a course of chemotherapy. When preparing the parents for the infant’s discharge, what information should the nurse give concerning the measles, mumps, and rubella (MMR) immunization?
- A. It should not be given until the infant reaches 2 years of age.
- B. Infants who are receiving chemotherapy should not be given these vaccines.
- C. It should be given to protect the infant from contracting any of these diseases.
- D. The parents should discuss this with their healthcare provider at the next visit.
Correct answer: B
Rationale: Live vaccines, like the measles, mumps, and rubella (MMR) vaccine, should not be administered to immunosuppressed infants, such as those undergoing chemotherapy. The weakened immune system of these infants may not be able to handle live vaccines safely, potentially leading to severe complications. Therefore, it is crucial to avoid giving live vaccines like MMR to infants receiving chemotherapy. Choice A is incorrect as delaying the MMR vaccine until the infant reaches 2 years of age is not the main concern in this scenario. Choice C is incorrect because although MMR vaccination is important for disease prevention, it should not be given to immunosuppressed infants. Choice D is incorrect as immediate action is needed to prevent potential harm from live vaccines in immunosuppressed infants.
2. A group of students is reviewing information about the endocrine system in infants and children. The students demonstrate understanding of the information when they state:
- A. Endocrine glands begin developing during gestation.
- B. Endocrine glands are fully functional at birth.
- C. Infants may have difficulty regulating glucose and electrolytes.
- D. A child’s endocrine system plays a significant role in growth and development.
Correct answer: C
Rationale: The correct answer is C. Infants may have difficulty regulating glucose and electrolytes due to their immature endocrine systems. This can lead to issues such as hypoglycemia and electrolyte imbalances. Choice A is incorrect because endocrine glands actually begin developing early in gestation, not just in the third trimester. Choice B is incorrect as endocrine glands are not fully functional at birth; they continue to mature and develop after birth. Choice D is incorrect as a child's endocrine system has a significant impact on growth and development through the secretion of hormones that regulate various processes in the body, but it does not specifically address the difficulty in regulating glucose and electrolytes seen in infants.
3. A nurse is discussing the care of an infant with colic with the parents. What should the nurse explain is the cause of colicky behavior?
- A. Inadequate peristalsis
- B. Paroxysmal abdominal pain
- C. An allergic response to certain proteins in milk
- D. A protective mechanism designed to eliminate foreign proteins
Correct answer: B
Rationale: The correct answer is B: Paroxysmal abdominal pain. Colic in infants is characterized by paroxysmal abdominal pain, leading to excessive crying and fussiness. It is not caused by inadequate peristalsis (Choice A), an allergic response to certain proteins in milk (Choice C), or a protective mechanism designed to eliminate foreign proteins (Choice D). Understanding that colic is primarily associated with abdominal pain helps healthcare providers provide appropriate care and support to parents dealing with colicky infants.
4. What is the most common cause of shock (hypoperfusion) in infants and children?
- A. infection
- B. cardiac failure
- C. accidental poisoning
- D. severe allergic reaction
Correct answer: A
Rationale: Infection is the most common cause of shock in infants and children due to their increased susceptibility to sepsis. Infants and children have underdeveloped immune systems, making them more prone to infections that can lead to septic shock. While cardiac failure is a serious condition, it is not the most common cause of shock in this population. Accidental poisoning, though dangerous, is less common than infection in causing shock in infants and children. Severe allergic reactions can lead to anaphylactic shock, but they are not as prevalent as infections in causing shock in this age group.
5. A young child has coarctation of the aorta. What does the nurse expect to identify when taking the child’s vital signs?
- A. A weak radial pulse
- B. An irregular heartbeat
- C. A bounding femoral pulse
- D. An elevated radial blood pressure
Correct answer: A
Rationale: In coarctation of the aorta, there is narrowing of the aorta leading to decreased blood flow distal to the constriction. This results in a weak or delayed femoral pulse and a relatively weaker radial pulse compared to the femoral pulse. An irregular heartbeat (choice B) is not a typical finding in coarctation of the aorta. A bounding femoral pulse (choice C) would not be expected due to the decreased blood flow beyond the constriction. An elevated radial blood pressure (choice D) is not a common characteristic of coarctation of the aorta; instead, blood pressure may be higher in the upper extremities compared to the lower extremities due to the constriction.
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