HESI RN
HESI Pediatric Practice Exam
1. An infant with tetralogy of Fallot becomes acutely cyanotic and hyperpneic. Which action should the nurse implement first?
- A. Administer morphine sulfate.
- B. Start IV fluids.
- C. Place the infant in a knee-chest position.
- D. Provide 100% oxygen by face mask.
Correct answer: C
Rationale: In a situation where an infant with tetralogy of Fallot is acutely cyanotic and hyperpneic, the priority action should be to place the infant in a knee-chest position. This position helps increase systemic vascular resistance, improving pulmonary blood flow and subsequently ameliorating the cyanosis and hyperpnea. It is a non-invasive and effective intervention that can be promptly implemented by the nurse to address the immediate respiratory distress. Administering morphine sulfate (Choice A) is not the priority in this case as it may cause further respiratory depression. Starting IV fluids (Choice B) may not address the immediate cyanosis and hyperpnea. Providing 100% oxygen by face mask (Choice D) can help with oxygenation but may not be as effective as placing the infant in a knee-chest position to improve blood flow dynamics.
2. A 4-year-old child with a history of frequent ear infections is brought to the clinic by the parents who are concerned about the child’s hearing. What is the nurse’s priority action?
- A. Perform a hearing test
- B. Inspect the child’s ears for drainage
- C. Refer the child to an audiologist
- D. Ask the parents about the child’s speech development
Correct answer: B
Rationale: The nurse's priority action should be to inspect the child's ears for drainage. This immediate assessment can provide valuable information about the presence of infection or fluid accumulation, which can directly impact the child's hearing. By identifying any signs of drainage, the nurse can promptly address any current issues affecting the child's ear health and hearing abilities. Performing a hearing test (Choice A) may be necessary but should follow the initial assessment of the ears. Referring the child to an audiologist (Choice C) can be considered later based on the findings. Asking about speech development (Choice D) is important but not the immediate priority compared to assessing for current ear issues.
3. A 10-year-old child is admitted with diabetic ketoacidosis (DKA). Which laboratory value should the practical nurse (PN) anticipate?
- A. Elevated blood glucose.
- B. Decreased serum ketones.
- C. Low urine glucose.
- D. High bicarbonate levels.
Correct answer: A
Rationale: In a case of diabetic ketoacidosis (DKA), the primary feature is elevated blood glucose levels due to insulin deficiency. Additionally, ketones are increased in the blood and urine. Bicarbonate levels are usually low because of the metabolic acidosis that accompanies DKA. Therefore, the practical nurse should anticipate elevated blood glucose levels as a characteristic laboratory finding in a child admitted with DKA. Choice B is incorrect because serum ketones are increased in DKA. Choice C is incorrect because in DKA, urine glucose is typically high due to spillage of glucose into the urine. Choice D is incorrect because bicarbonate levels are usually low in DKA, not high.
4. A 3-year-old child with a high fever and sore throat is brought to the clinic. The nurse observes that the child is drooling and has difficulty swallowing. What is the nurse’s priority action?
- A. Administer antipyretic medication
- B. Prepare for emergency airway management
- C. Offer the child ice chips to suck on
- D. Assess the child’s hydration status
Correct answer: B
Rationale: In a 3-year-old child with drooling, difficulty swallowing, high fever, and sore throat, the nurse should prioritize preparing for emergency airway management. These signs may indicate epiglottitis, a condition that can quickly obstruct the airway, leading to respiratory distress and potentially fatal outcomes if not managed promptly. Administering antipyretic medication (Choice A) may be necessary later but is not the priority. Offering ice chips (Choice C) is contraindicated as the child has difficulty swallowing. Assessing hydration status (Choice D) is important but not the priority when the airway is at risk.
5. A 14-year-old adolescent with a history of substance abuse is brought to the emergency department by the parents, who suspect that the adolescent has relapsed. What is the nurse’s priority action?
- A. Obtain a urine sample for toxicology screening
- B. Discuss treatment options with the parents
- C. Establish a therapeutic relationship with the adolescent
- D. Administer a medication to reverse the effects of the substance
Correct answer: A
Rationale: In this scenario, the nurse's priority action should be to obtain a urine sample for toxicology screening. This step is crucial in identifying the substances involved in the relapse, which will guide appropriate treatment strategies. By knowing the specific substances, healthcare providers can tailor treatment plans effectively. Establishing a therapeutic relationship and discussing treatment options come after obtaining necessary diagnostic information to ensure a comprehensive care plan. Administering a medication to reverse substance effects is not the initial priority; identification of the substances through toxicology screening should precede any treatment intervention.
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