HESI RN
HESI Pediatrics Practice Exam
1. When reviewing developmental changes with the parents of a 6-month-old infant, what information should the practical nurse reinforce?
- A. Encourage the infant to self-feed finger foods.
- B. Teach the parents strategies to help the infant sit up.
- C. Provide a developmentally safe environment for the infant.
- D. Explain that an increased appetite typically occurs in the next 6 months.
Correct answer: C
Rationale: The correct answer is C because providing a developmentally safe environment for a 6-month-old infant is crucial as they begin to explore their surroundings more actively. This includes ensuring that the environment is free of hazards and that the infant is supervised to prevent accidents. Choice A is incorrect because self-feeding finger foods may not be developmentally appropriate for a 6-month-old infant. Choice B is incorrect as most infants are able to sit up with support around 6 months of age without the need for specific teaching strategies. Choice D is also incorrect as while appetite changes can occur, explaining a specific increase in appetite over the next 6 months is not a primary focus when discussing developmental changes with parents of a 6-month-old.
2. A 4-month-old girl is brought to the clinic by her mother because she has had a cold for 2 or 3 days and woke up this morning with a hacking cough and difficulty breathing. Which additional assessment finding should alert the nurse that the child is in acute respiratory distress?
- A. Bilateral bronchial breath sounds.
- B. Diaphragmatic breathing.
- C. A resting respiratory rate of 35 breaths per minute.
- D. Flaring of the nares.
Correct answer: D
Rationale: Flaring of the nares is a classic sign of acute respiratory distress in infants. It indicates increased work of breathing and is a visible cue that the child is struggling to breathe. This finding should alert healthcare providers to the severity of the respiratory distress and the need for prompt intervention to support the child's breathing. Choices A, B, and C are incorrect. Bilateral bronchial breath sounds are associated with conditions like pneumonia, but they do not specifically indicate acute respiratory distress. Diaphragmatic breathing is a normal breathing pattern and not a sign of distress. A resting respiratory rate of 35 breaths per minute is within the expected range for a 4-month-old infant and does not necessarily indicate acute respiratory distress.
3. A 16-year-old female student with a history of asthma controlled with both an oral antihistamine and an albuterol (Proventil) metered-dose inhaler (MDI) comes to the school nurse. The student complains that she cannot sleep at night, feels shaky and her heart feels like it is 'beating a mile a minute.' Which information is most important for the nurse to obtain?
- A. When she last took the antihistamine.
- B. When her last asthma attack occurred.
- C. Duration of most asthma attacks.
- D. How often the MDI is used daily.
Correct answer: D
Rationale: The most important information for the nurse to obtain in this scenario is how often the MDI is used daily. This is crucial to assess if the symptoms the student is experiencing, such as insomnia, shakiness, and tachycardia, could be related to overuse of the inhaler. Overuse of albuterol can lead to side effects like tremors, palpitations, and difficulty sleeping, so understanding the frequency of MDI use is key in determining a potential cause for the student's symptoms. Options A, B, and C are not as pertinent in this situation as they do not directly address the possible link between the student's symptoms and the use of the albuterol MDI.
4. During a well baby visit, the parents explain that a soft bulge appears in the groin of their 4-month-old son when he cries or strains during stooling. The infant is scheduled for surgical repair of the inguinal hernia in two weeks. What should the parent be instructed to do if the hernia becomes incarcerated prior to the surgery?
- A. Use a rectal thermometer to strain during stooling.
- B. Gently manipulate the hernia for reduction.
- C. Offer oral electrolyte fluids for comfort.
- D. Give acetaminophen or aspirin for crying.
Correct answer: B
Rationale: In the case of an incarcerated inguinal hernia, gentle manipulation can sometimes help in reducing it before surgery. This action should be taken cautiously and immediately followed by seeking medical attention. It is important to note that attempting reduction should be done by a healthcare professional, and parents should be advised to seek urgent medical care if the hernia becomes incarcerated. Using a rectal thermometer to strain during stooling (Choice A) is not the correct approach for an incarcerated hernia and can worsen the condition. Offering oral electrolyte fluids for comfort (Choice C) or giving acetaminophen or aspirin for crying (Choice D) are not appropriate interventions for an incarcerated hernia and may delay necessary medical treatment.
5. The healthcare provider is assessing an infant with pyloric stenosis. Which pathophysiological mechanism is the most likely consequence of this infant's clinical picture?
- A. Metabolic alkalosis.
- B. Respiratory acidosis.
- C. Metabolic acidosis.
- D. Respiratory alkalosis.
Correct answer: A
Rationale: Pyloric stenosis leads to obstruction at the outlet of the stomach, causing frequent vomiting and loss of stomach acids. This results in a loss of hydrochloric acid and hydrogen ions, leading to metabolic alkalosis due to an increase in serum bicarbonate levels. Therefore, the correct answer is metabolic alkalosis. Choice B, respiratory acidosis, is incorrect as it is not typically associated with pyloric stenosis. Choice C, metabolic acidosis, is incorrect because the loss of stomach acids in pyloric stenosis leads to metabolic alkalosis, not acidosis. Choice D, respiratory alkalosis, is also incorrect as it is not the usual consequence of pyloric stenosis.
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