HESI RN
HESI Pediatrics Practice Exam
1. When should a mother introduce solid foods to her 4-month-old baby girl? The mother states, 'My mother says I should put rice cereal in the baby's bottle now.' The nurse should instruct the mother to introduce solid foods when her child exhibits which behavior?
- A. Stops rooting when hungry
- B. Opens mouth when food comes her way
- C. Awakens once for nighttime feedings
- D. Gives up a bottle for a cup
Correct answer: B
Rationale: The correct answer is B: 'Opens mouth when food comes her way.' This behavior indicates readiness to start trying solid foods. Infants should be introduced to solid foods based on developmental cues, such as showing an interest in food and the ability to accept it. Choices A, C, and D are not indicative of readiness for solid foods. Stopping rooting when hungry is a reflex that may persist beyond the readiness for solids. Awakening for nighttime feedings is a normal behavior for a 4-month-old, and transitioning from a bottle to a cup is a later developmental milestone.
2. A 5-year-old child with leukemia is receiving chemotherapy. The nurse notes that the child’s white blood cell count is low. What is the nurse’s priority intervention?
- A. Administer antibiotics as prescribed
- B. Place the child in protective isolation
- C. Encourage the child to eat a balanced diet
- D. Teach the parents about infection prevention
Correct answer: B
Rationale: The priority intervention for a 5-year-old child with leukemia receiving chemotherapy and having a low white blood cell count is to place the child in protective isolation. This intervention helps reduce the risk of infection, which is crucial in this immunocompromised state. Protective isolation aims to limit the child's exposure to pathogens and promote their safety during a period of increased vulnerability to infections.
3. In a 6-year-old child with asthma experiencing difficulty breathing and using accessory muscles to breathe with a peak flow reading in the red zone, what should the nurse do first?
- A. Administer a nebulized bronchodilator
- B. Obtain an arterial blood gas
- C. Start the child on oxygen therapy
- D. Contact the healthcare provider
Correct answer: A
Rationale: The correct action for a 6-year-old child with asthma who is experiencing difficulty breathing, using accessory muscles to breathe, and has a peak flow reading in the red zone is to administer a nebulized bronchodilator first. Nebulized bronchodilators work rapidly to open up the airways, providing immediate relief and improving breathing. This intervention is crucial in addressing the acute respiratory distress the child is facing. Obtaining an arterial blood gas, starting oxygen therapy, or contacting the healthcare provider can be considered after the initial administration of the bronchodilator, as they are not the primary interventions needed to manage the child's acute respiratory distress.
4. A 10-year-old child is brought to the emergency department after falling from a bicycle and hitting their head. The nurse notes that the child is drowsy and has a headache. What is the nurse’s priority action?
- A. Perform a full neurological assessment
- B. Administer pain medication
- C. Allow the child to rest quietly
- D. Check the child's immunization status
Correct answer: A
Rationale: In a child who has fallen and hit their head, presenting with drowsiness and headache, the priority action for the nurse is to perform a full neurological assessment. This is crucial to evaluate the extent of the head injury and monitor for signs of increased intracranial pressure, which could indicate a more severe traumatic brain injury. Administering pain medication or allowing the child to rest quietly are not appropriate initial actions without first assessing the neurological status. Checking the child's immunization status is important for overall health but is not the priority in this acute situation.
5. A child who weighs 25 kg is receiving IV ampicillin at a dose of 300 mg/kg/24 hours in equally divided doses every 4 hours. How many milligrams should the nurse administer to the child for each dose?
- A. 1875 mg
- B. 625 mg
- C. 2000 mg
- D. 1500 mg
Correct answer: A
Rationale: To calculate the correct dose for each administration, you first need to find the total daily dose: 300 mg/kg * 25 kg = 7500 mg/day. Since this total dose is divided into equally divided doses every 4 hours, there are 6 doses in 24 hours. Therefore, 7500 mg ÷ 6 doses = 1250 mg per dose. The nurse should administer 1250 mg every 4 hours, resulting in a total of 1875 mg for each dose in a 24-hour period. Choice A, 1875 mg, is the correct answer. Choice B, 625 mg, is incorrect as it does not consider the total daily dose and the frequency of administration. Choice C, 2000 mg, is incorrect as it is not the calculated dosage based on the given parameters. Choice D, 1500 mg, is also incorrect as it does not reflect the correct dosage calculation for each dose.
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