Correct Answer: B

Rationale: The correct answer is B: Signs of child abuse. Large welts and scars on a child may be indicative of abuse, making it crucial for the nurse to assess and report any suspicions. Assessing the history of an injury (choice A) may not provide insight into the cause of the welts and scars as effectively as looking for signs of potential abuse. Food allergies (choice C) and recent recovery from chickenpox (choice D) are not directly relevant to the observation of welts and scars on the child's back.

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 as cellular metabolism instability does not directly relate to the infant's condition described. Choice B is inaccurate as the proportion of water in the body is not the primary issue causing the infant's symptoms. Choice C is incorrect as renal function being immature does not explain the sudden change in the infant's health status; it is more related to fluid balance and dehydration.

Correct Answer: C

Rationale: The correct answer is to measure the dose with a proper measuring device. Using a household spoon can lead to inaccurate dosing, which can be dangerous. Administering the medication with food or only when the child has a high fever are not the essential instructions related to the safe and effective administration of acetaminophen.

Correct Answer: A

Rationale: The correct answer is A: Parallel. Toddlers typically engage in parallel play, where they play alongside but not directly with other children. This type of play is common during early childhood as children are still developing social skills and may prefer to play independently while observing others. Choice B, Solitary play, refers to a child playing alone without interacting with others. Choice C, Cooperative play, involves children playing together towards a common goal or activity. Choice D, Competitive play, emphasizes winning and outperforming others, which is less common in toddlers as they are in the stage of exploring and learning through play rather than competing.

Correct Answer: A

Rationale: The correct answer is A: Risk for impaired skin integrity due to the cast and its location. When a child has a long-leg hip spica cast, the priority nursing diagnosis is to prevent impaired skin integrity. This is because the child's mobility is restricted, and pressure from the cast can lead to skin breakdown. Option B is incorrect as while education is essential, it is not the priority when skin integrity is at risk. Option C is incorrect because while immobility can impact development, immediate skin integrity concerns take precedence. Option D is incorrect as self-care deficit, while important, is secondary to preventing skin breakdown in this scenario.