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. What age-appropriate play activity should the practical nurse suggest to the parents of a 7-month-old infant to encourage visual stimulation?
- A. Play peek-a-boo.
- B. Play pat-a-cake.
- C. Imitate animal sounds.
- D. Show how to clap hands.
Correct answer: A
Rationale: The practical nurse should suggest playing peek-a-boo to the parents of a 7-month-old infant to encourage visual stimulation. Peek-a-boo is a suitable game for this age group as it helps develop visual tracking skills and the concept of object permanence. By covering and uncovering their face or a toy, the infant learns that things still exist even when they cannot be seen, promoting cognitive development and visual engagement.
3. 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.
4. What action should be taken by the healthcare provider for a child who has ingested a corrosive product?
- A. Induce vomiting using Ipecac to remove the corrosive agent.
- B. Administer vinegar or lemon juice to neutralize the caustic agent.
- C. Give activated charcoal to decontaminate the stomach.
- D. Telephone the poison control center and follow their advice.
Correct answer: D
Rationale: In cases of corrosive product ingestion, it is crucial to contact the poison control center for guidance. Inducing vomiting or attempting to neutralize the agent can lead to further harm. The poison control center professionals are trained to provide specific instructions tailored to the situation, ensuring the best possible outcome for the child. Therefore, the correct action is to call the poison control center for appropriate advice. Inducing vomiting can cause additional damage by re-exposing the esophagus and mouth to the corrosive substance. Administering vinegar or lemon juice is not recommended as it may worsen the situation by causing a chemical reaction. While activated charcoal can be useful in some cases of poisoning, it is not recommended for corrosive substances as it is ineffective in binding to them.
5. A child with cystic fibrosis is being discharged home with pancreatic enzyme replacement therapy. What information should the practical nurse reinforce with the parents?
- A. Give the enzymes after meals.
- B. Mix the enzymes with hot food or drinks.
- C. Enzymes should be taken before or with meals.
- D. Avoid giving enzymes with any food or drink.
Correct answer: C
Rationale: The correct answer is C: 'Enzymes should be taken before or with meals.' Pancreatic enzymes should be taken before or with meals to assist with digestion in children with cystic fibrosis. This timing helps maximize the effectiveness of the enzymes in breaking down nutrients from food. Giving the enzymes after meals (choice A) may not provide the necessary support for digestion. Mixing the enzymes with hot food or drinks (choice B) is not recommended as it may affect the enzymes' efficacy. Avoiding giving enzymes with any food or drink (choice D) is incorrect as enzymes need to be taken in conjunction with meals to aid in digestion.
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