Pediatric HESI Test Bank

Correct Answer: D

Rationale: The correct answer is D. Infants have a higher extracellular fluid requirement per unit of body weight, making them more susceptible to dehydration and electrolyte imbalances during illnesses such as diarrhea. Choice A is incorrect because cellular metabolism being unstable is not the primary explanation for the symptoms described. Choice B is incorrect as the proportion of water in the body alone does not fully explain the increased risk of dehydration in infants. Choice C is incorrect because while renal function is immature in children, it is not the most relevant factor in this scenario compared to the increased fluid requirements.

Correct Answer: A

Rationale: For a 4-year-old child scheduled for a myringotomy, explaining the procedure in simple terms is essential in helping the child understand what will happen during the surgery and reducing anxiety. Encouraging fluid intake, allowing the child to play with medical equipment, and using play therapy are not directly related to preparing the child for the myringotomy procedure. Therefore, these options are incorrect and not as beneficial as explaining the procedure in simple terms.

Correct Answer: A

Rationale: The correct answer is A. Reading stories to the child about famous athletes would be the most successful guidance for a child with a 'slow-to-warm-up' temperament. This approach allows for a less active and more acceptable way of engaging with the child, aligning better with the child's temperament. Choices B, C, and D involve more active and potentially overwhelming activities for a child with such a temperament, which may not be as effective in stimulating and engaging the child.

Correct Answer: B

Rationale: In this scenario, the most appropriate first action is to advise your partner to stop the ambulance and assist with the delivery. When the baby's head is visible and delivery is imminent, it is crucial to provide immediate assistance to ensure the safety of both the mother and the baby. Allowing the head to deliver and checking for the location of the cord (Choice A) may delay necessary actions during an imminent delivery. Instructing the mother to take short, quick breaths (Choice C) is not suitable as active delivery is already in progress. Preparing the mother for an emergency delivery and opening the obstetrics kit (Choice D) is not the most immediate action needed when the baby's head is already visible and delivery is imminent.

Correct Answer: D

Rationale: Preparing a toddler for a CT scan involves providing a simple explanation of the procedure to help reduce anxiety and fear. Shaving the child's head is unnecessary for a CT scan and may increase distress. Starting an IV infusion or administering sedatives may not be appropriate or necessary for all pediatric patients undergoing CT scans, especially if the child can cooperate without these interventions.