HESI LPN
Pediatric Practice Exam HESI
1. Why might a healthcare provider question a health care provider's order for a tap water enema for a 6-month-old infant with suspected Hirschsprung disease?
- A. The result could lead to loss of necessary nutrients.
- B. It could cause a fluid and electrolyte imbalance.
- C. It could increase the fear of intrusive procedures.
- D. The result could cause shock from a sudden drop in temperature.
Correct answer: B
Rationale: The correct answer is B. Tap water enemas can cause significant fluid and electrolyte imbalances, particularly in infants, making them unsafe for this age group. Choice A is incorrect because tap water enemas are unlikely to lead to loss of necessary nutrients. Choice C is incorrect as it does not directly relate to the physiological risk of tap water enemas. Choice D is incorrect as shock from a sudden drop in temperature is not a common concern with tap water enemas.
2. When describing urticaria, what would an instructor include?
- A. It is a type IV hypersensitivity reaction.
- B. Histamine release leads to vasodilation.
- C. Wheals appear first followed by erythema.
- D. The nonpruritic rash blanches with pressure.
Correct answer: B
Rationale: The correct answer is B. Urticaria is a type I hypersensitivity reaction where histamine release leads to vasodilation and the formation of characteristic wheals. Choice A is incorrect as urticaria is associated with type I hypersensitivity, not type IV. Choice C is incorrect because in urticaria, erythema typically appears before the development of wheals. Choice D is incorrect as urticaria is typically pruritic and does not blanch with pressure.
3. A child with acute lymphoblastic leukemia (ALL) is hospitalized for treatment. What is the priority nursing intervention?
- A. Administering antibiotics
- B. Preventing infection
- C. Providing nutritional support
- D. Managing pain
Correct answer: B
Rationale: The priority nursing intervention for a child hospitalized for acute lymphoblastic leukemia (ALL) is preventing infection. Children with ALL have compromised immune systems, making them highly vulnerable to infections. Preventing infections through strict aseptic techniques, isolation precautions, and proper hygiene is crucial to safeguard the child's health. Administering antibiotics (choice A) may be necessary if an infection occurs, but the primary focus should be on infection prevention. While providing nutritional support (choice C) is important, preventing infection takes precedence due to its direct impact on the child's survival. Managing pain (choice D) is essential for the child's comfort but is not the priority over preventing life-threatening infections in this scenario.
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 3-year-old child has a sudden onset of respiratory distress. The mother denies any recent illnesses or fever. You should suspect
- A. croup
- B. epiglottitis
- C. lower respiratory infection
- D. foreign body airway obstruction
Correct answer: D
Rationale: In a 3-year-old child presenting with sudden respiratory distress and no history of recent illnesses or fever, foreign body airway obstruction should be suspected. Foreign body airway obstruction commonly leads to acute respiratory distress without preceding symptoms. Croup (Choice A) typically presents with a barking cough and stridor. Epiglottitis (Choice B) often presents with high fever, drooling, and a muffled voice. Lower respiratory infection (Choice C) may manifest with symptoms such as cough, fever, and respiratory distress, but the sudden onset without fever or recent illness suggests a more acute event like foreign body airway obstruction.
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