HESI RN
HESI Practice Test Pediatrics
1. A child admitted with diabetic ketoacidosis is demonstrating Kussmaul respirations. The nurse determines that the increased respiratory rate is a compensatory mechanism for which acid-base alteration?
- A. Metabolic alkalosis.
- B. Respiratory acidosis.
- C. Respiratory alkalosis.
- D. Metabolic acidosis.
Correct answer: D
Rationale: Kussmaul respirations are deep, rapid breathing patterns observed in metabolic acidosis, such as diabetic ketoacidosis. In this condition, the body tries to compensate for the acidic environment by increasing the respiratory rate to eliminate excess carbon dioxide (CO2) and decrease the acid levels, thereby helping to correct the acid-base imbalance. Therefore, the correct answer is metabolic acidosis.
2. When caring for a child with Kawasaki disease, which symptom is the most significant for making this diagnosis?
- A. Desquamation of the palms and soles.
- B. Cervical lymphadenopathy.
- C. Erythema of the hands and feet.
- D. Strawberry tongue.
Correct answer: C
Rationale: Erythema of the hands and feet is a key diagnostic criterion for Kawasaki disease. This, along with other symptoms like fever and strawberry tongue, helps in making the diagnosis. While desquamation of the palms and soles, cervical lymphadenopathy, and strawberry tongue are associated with Kawasaki disease, the presence of erythema of the hands and feet is particularly significant in diagnosing this condition.
3. What is the priority intervention for a 16-year-old client with a history of depression who is brought to the emergency department after taking an overdose of acetaminophen?
- A. Administer activated charcoal
- B. Place the client on continuous cardiac monitoring
- C. Prepare for gastric lavage
- D. Administer N-acetylcysteine as prescribed
Correct answer: D
Rationale: The priority intervention for a client who has taken an acetaminophen overdose is to administer N-acetylcysteine promptly. N-acetylcysteine is the antidote for acetaminophen overdose and helps prevent liver damage. Activated charcoal may be used in certain cases, but N-acetylcysteine takes precedence as it directly counteracts the toxic effects of acetaminophen. Continuous cardiac monitoring and gastric lavage are not the priority interventions for acetaminophen overdose. Administering N-acetylcysteine is crucial to prevent liver damage and address the overdose, making it the most urgent action in this scenario.
4. The nurse is assessing a 4-year-old child who is brought to the clinic for a routine checkup. The child’s parent reports that the child has been more irritable and less active over the past week. The nurse notes a petechial rash on the child’s trunk and extremities. What should the nurse do first?
- A. Ask the parent about recent exposure to contagious diseases
- B. Review the child’s immunization record
- C. Measure the child’s temperature
- D. Notify the healthcare provider immediately
Correct answer: D
Rationale: In this scenario, the child's presentation with irritability, decreased activity, and a petechial rash raises concern for a serious condition like meningitis. Petechial rash can be indicative of meningitis or other critical illnesses. Therefore, the nurse's priority should be to notify the healthcare provider immediately to ensure prompt evaluation and appropriate management. Asking about recent exposure to contagious diseases may be relevant later but is not the most urgent action. Reviewing the child's immunization record and measuring the temperature can provide valuable information but should not take precedence over the need to address the potential serious condition indicated by the petechial rash.
5. What suggestion should the nurse provide to prevent diaper rash in a 4-month-old infant as requested by the mother?
- A. Generously powder the baby's diaper area with talcum powder at each diaper change to promote dryness.
- B. Wash the diaper area every 2 hours with soap and water to help prevent skin breakdown.
- C. Use a barrier cream, such as zinc oxide, which does not have to be completely removed with each diaper change.
- D. Place a cloth diaper inside the disposable diaper for overnight periods when increased wearing time is likely.
Correct answer: C
Rationale: Using a barrier cream like zinc oxide forms a protective layer on the skin, creating a barrier against irritants and moisture, thus helping to prevent diaper rash. Unlike other options, barrier creams do not need to be completely removed at each diaper change, allowing the skin to remain protected between changes.
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