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: C

Rationale: The correct answer is to measure the dose with a proper measuring device. Using a proper measuring device ensures accurate dosing, which is crucial to avoid under or overdosing. Administering the medication with food (Choice A) is not necessary for acetaminophen. Using a household spoon (Choice B) can lead to inaccurate dosing due to variations in spoon sizes. Administering the medication only when the child has a high fever (Choice D) is not appropriate as acetaminophen can be used for fever management regardless of the fever intensity.

Correct Answer: B

Rationale: The priority nursing intervention when caring for a child with nephrotic syndrome is monitoring urine output. This is essential for assessing kidney function and managing the condition effectively. Administering diuretics (Choice A) may be a part of the treatment plan but should not be the priority over monitoring urine output. Administering corticosteroids (Choice C) may also be a treatment for nephrotic syndrome, but monitoring urine output takes precedence. Restricting fluid intake (Choice D) may be necessary in some cases, but it is not the priority intervention compared to monitoring urine output for early detection of changes in kidney function.

Correct Answer: D

Rationale: The correct answer is D: Pubic bone malformation. Exstrophy of the bladder is commonly associated with pubic bone malformation as the condition involves a defect in the pelvic region. Imperforate anus, absence of one kidney, and congenital heart disease are not typically associated with exstrophy of the bladder, making them incorrect choices. Therefore, the nurse should primarily assess the infant for pubic bone malformation in this case.

Correct Answer: D

Rationale: In a 3-year-old child presenting with sudden respiratory distress without fever or recent illness, the most likely cause is a foreign body airway obstruction. Foreign body airway obstruction can lead to a sudden onset of respiratory distress as it blocks the air passage. Croup typically presents with a barking cough and stridor, often preceded by a viral illness. Epiglottitis is characterized by high fever, drooling, and a muffled voice. Lower respiratory infections usually present with symptoms such as cough, fever, and chest congestion. Therefore, in this case, the absence of recent illness or fever makes foreign body airway obstruction the most likely cause of the respiratory distress.