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 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.
3. 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.
4. While teaching a parenting class to new parents, the nurse describes the needs of infants and toddlers regarding discipline and limit setting. What is the most important reason for implementing such parenting behaviors?
- A. Children need help in developing social skills.
- B. This age group fears loss of self-control.
- C. They provide the child with a sense of security.
- D. Children must learn to deal with authority.
Correct answer: C
Rationale: Implementing discipline and limit setting for infants and toddlers is primarily important as it provides them with a sense of security. This sense of security is crucial for their emotional and psychological development, helping them feel safe and supported as they explore the world around them. Choice A is incorrect because while developing social skills is important, the primary reason for discipline and limit setting in this context is to provide security. Choice B is incorrect as it does not address the main reason for implementing discipline and limit setting. Choice D is incorrect as the primary focus is not about dealing with authority at this early stage of development.
5. When instilling ear drops in a 2-year-old child, how should the practical nurse (PN) position the earlobe to straighten the external auditory canal?
- A. Up and back.
- B. Down and back.
- C. Up and forward.
- D. Down and forward.
Correct answer: B
Rationale: When administering ear drops to a child under three years old, it is essential to pull the earlobe down and back. This positioning helps straighten the external auditory canal, facilitating the proper administration of the ear drops. Pulling the earlobe down and back in young children aims to ensure that the medication reaches the intended area for optimal effectiveness.
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