HESI LPN
Pediatrics HESI 2023
1. A nurse is caring for an infant with intractable vomiting. For what complication is it most important for the nurse to assess?
- A. Acidosis
- B. Alkalosis
- C. Hyperkalemia
- D. Hypernatremia
Correct answer: B
Rationale: When an infant experiences intractable vomiting, it can lead to the loss of stomach acids, resulting in metabolic alkalosis. Alkalosis is characterized by elevated blood pH and can lead to serious complications. Assessing for alkalosis is essential in this scenario to monitor and manage the infant's condition. Choices A, C, and D are incorrect because in this context, the primary concern is the metabolic imbalance caused by excessive vomiting, leading to alkalosis rather than acidosis, hyperkalemia, or hypernatremia.
2. During a routine monthly examination, a 5-month-old infant is brought to the pediatric clinic. What assessment finding should alert the nurse to notify the health care provider immediately?
- A. Temperature of 99.5°F
- B. Blood pressure of 75/48 mm Hg
- C. Heart rate of 100 beats per minute
- D. Respiratory rate of 50 breaths per minute
Correct answer: D
Rationale: A respiratory rate of 50 breaths per minute in a 5-month-old infant is higher than the expected range and may indicate respiratory distress. This finding is concerning and should prompt the nurse to notify the health care provider for further evaluation and intervention. A temperature of 99.5°F, blood pressure of 75/48 mm Hg, and heart rate of 100 beats per minute are within normal ranges for a 5-month-old infant. Elevated temperature may indicate a mild fever, which can be monitored. A blood pressure of 75/48 mm Hg is within the normal range for infants. A heart rate of 100 beats per minute is also within the expected range for a 5-month-old infant and does not typically require immediate notification of the health care provider.
3. An infant is diagnosed with Hirschsprung disease. What nursing intervention is essential before surgery?
- A. Administering antibiotics
- B. Ensuring bowel rest
- C. Performing regular enemas
- D. Maintaining NPO status
Correct answer: D
Rationale: The correct nursing intervention essential before surgery for an infant with Hirschsprung disease is maintaining NPO (nothing by mouth) status. This is important to prevent aspiration during and after the surgical procedure. Administering antibiotics (Choice A) may be necessary in some cases but is not the priority intervention before surgery. Ensuring bowel rest (Choice B) is not directly related to preparing for surgery and may not be the most critical intervention. Performing regular enemas (Choice C) is not recommended before surgery for Hirschsprung disease as it can aggravate the condition.
4. A 7-year-old child has an altered mental status, high fever, and a generalized rash. You perform your assessment and initiate oxygen therapy. En route to the hospital, you should be most alert for
- A. vomiting
- B. seizures
- C. combativeness
- D. respiratory distress
Correct answer: B
Rationale: Seizures are a common complication in children with high fever and altered mental status, indicating a risk of febrile seizures. While vomiting can occur with altered mental status, seizures are of higher concern due to the association with febrile illnesses in children. Combativeness may be a concern in some altered mental status cases but is not as common as seizures. Respiratory distress, although important, is not the primary concern in this scenario given the symptoms presented.
5. 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.
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