Correct Answer: B

Rationale: The correct answer is B. Setting the water heater at 130 degrees is incorrect because water heaters should be set to no higher than 120 degrees to prevent scald burns. Choice A is correct as leaving fireworks displays to professionals reduces the risk of burns. Choice C is also correct as flame-retardant sleepwear reduces the risk of burn injuries. Choice D is correct as keeping pot handles facing inward prevents accidental spills and burns.

Correct Answer: C

Rationale: Preventing straining at stool is crucial postoperatively after heart surgery for tetralogy of Fallot to avoid increasing intrathoracic pressure and placing stress on the surgical site. This can help prevent complications and promote faster healing. While crying, coughing, and unnecessary movement are common postoperative behaviors, they are not specifically linked to worsening outcomes in this context. Straining at stool is particularly emphasized due to its potential to impact the surgical site and overall recovery process.

Correct Answer: B

Rationale: The priority nursing intervention for a child with juvenile idiopathic arthritis (JIA) is to administer nonsteroidal anti-inflammatory drugs (NSAIDs). NSAIDs help manage pain and inflammation associated with JIA, making them crucial in providing relief to the child. Encouraging a diet high in protein (Choice A) may be beneficial for overall health but is not the priority in managing JIA symptoms. Applying heat to affected joints (Choice C) can provide comfort but does not address the underlying inflammation. Providing range-of-motion exercises (Choice D) is important for maintaining joint mobility but is not the priority intervention when managing acute symptoms of JIA.

Correct Answer: A

Rationale: In a neonate with a suspected tracheoesophageal fistula, elevating the head but giving nothing by mouth is crucial to prevent aspiration. Placing the neonate in a semi-upright position helps reduce the risk of reflux and aspiration of gastric contents into the lungs. Elevating the head for feedings (Choice B) would still pose a risk of aspiration as the neonate may aspirate during feeding. Feeding glucose water only (Choice C) is not appropriate and does not address the risk of aspiration associated with a tracheoesophageal fistula. Avoiding suctioning unless the infant is cyanotic (Choice D) is incorrect because suctioning may be necessary for maintaining airway patency, regardless of cyanosis, in a neonate with a suspected tracheoesophageal fistula.

Correct Answer: B

Rationale: The priority nursing intervention for a child with juvenile idiopathic arthritis (JIA) is administering nonsteroidal anti-inflammatory drugs (NSAIDs) to manage pain and inflammation. NSAIDs are commonly used in the treatment of JIA to help alleviate symptoms. While encouraging a diet high in protein, applying heat to affected joints, and providing range-of-motion exercises are essential components of care, addressing pain and inflammation with NSAIDs is the priority intervention. This is because controlling pain and inflammation is crucial in improving the child's comfort and quality of life, which takes precedence over other supportive measures.