HESI LPN
HESI Pediatrics Quizlet
1. What definitive diagnostic procedure does the nurse expect to be used to confirm the diagnosis of Hirschsprung disease in a 1-month-old infant?
- A. Colonoscopy
- B. Rectal biopsy
- C. Multiple saline enemas
- D. Fiberoptic nasoenteric tube
Correct answer: B
Rationale: Rectal biopsy is the definitive diagnostic procedure for Hirschsprung disease in infants. This procedure reveals the absence of ganglion cells in the affected bowel segment, which is a hallmark of Hirschsprung disease. Colonoscopy (Choice A) is not typically used for diagnosing Hirschsprung disease due to the risk of not accurately reaching the affected segment. Multiple saline enemas (Choice C) are not used to confirm the diagnosis of Hirschsprung disease. Fiberoptic nasoenteric tube (Choice D) is not a standard diagnostic procedure for Hirschsprung disease and does not provide the necessary information to confirm the absence of ganglion cells in the affected bowel segment.
2. When working with a couple at risk of bearing a child with a genetic abnormality, what is most important for the nurse to incorporate into the plan of care?
- A. Gathering information from at least three generations
- B. Informing the couple of the need for a wide range of information
- C. Maintaining the confidentiality of the information
- D. Presenting the information in a nondirective manner
Correct answer: D
Rationale: When counseling a couple at risk of genetic abnormalities, it is crucial to present information in a nondirective manner. This approach allows the couple to make informed decisions without feeling pressured or influenced. Gathering information from at least three generations (Choice A) may be relevant for genetic counseling but is not the most critical aspect in this scenario. Informing the couple of the need for a wide range of information (Choice B) is too general and does not address the specific approach needed in this situation. Maintaining the confidentiality of the information (Choice C) is important but not the top priority compared to presenting information in a nondirective manner.
3. When administering IV fluids to a dehydrated infant, what intervention is most important at this time?
- A. Continuing the prescribed flow rate
- B. Monitoring the intravenous drop rate
- C. Calculating the total necessary intake
- D. Maintaining the fluid at body temperature
Correct answer: B
Rationale: Monitoring the intravenous drop rate is crucial when administering IV fluids to ensure that the correct amount of fluids is delivered to the dehydrated infant. Choice A assumes the initial rate is correct without ongoing assessment. Choice C, while important, does not address the immediate need for monitoring the infusion rate. Choice D, maintaining the fluid at body temperature, is essential for comfort but is not as critical as ensuring the correct fluid delivery rate. By monitoring the intravenous drop rate, healthcare providers can adjust the flow as needed to prevent overhydration or underhydration, helping to manage the infant's fluid balance effectively.
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 child is admitted with extensive burns. The nurse notes burns on the child’s lips and singed nasal hairs. The nurse should suspect that the child has a(n)
- A. chemical burn
- B. inhalation injury
- C. electrical burn
- D. hot-water scald
Correct answer: B
Rationale: Burns on the lips and singed nasal hairs are indicative of an inhalation injury. This suggests that the child has likely inhaled hot gases or smoke, leading to damage in the respiratory tract. Choice A, chemical burn, is incorrect because the symptoms described are more aligned with inhalation rather than direct contact with chemicals. Choice C, electrical burn, is incorrect as there are no mentions of contact with an electrical source. Choice D, hot-water scald, is also incorrect as the presentation of burns on the lips and singed nasal hairs is not characteristic of scald injuries.
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