Correct Answer: A

Rationale: The correct intervention for a child with Leukemia undergoing chemotherapy and experiencing altered nutrition, less than body requirements due to anorexia, nausea, and vomiting is to allow the child to eat foods desired and tolerated. This intervention helps improve the child's nutrition intake during chemotherapy. Choice B is incorrect because restricting foods may further limit the child's nutritional intake. Choice C is incorrect because recommending eating the same foods as siblings may not align with the child's preferences or needs during treatment. Choice D is incorrect as encouraging large portions of food at every meal may overwhelm the child and be counterproductive to their nutritional needs.

Correct Answer: A

Rationale: Verifying the client's blood type is crucial before administering PRBCs to ensure compatibility and prevent transfusion reactions. Checking the client's blood type is essential in blood transfusions. Ensuring the PRBCs are warm is not a priority as the temperature should be within a specific range regardless of the client's preference. Checking the client's vital signs is important but not as crucial as verifying the blood type before a blood transfusion. Obtaining the client's consent is important for any procedure but does not directly impact the safety and success of administering PRBCs.

Correct Answer: A

Rationale: The correct answer is A: 'Blow cool air from a hairdryer under the cast.' Blowing cool air can help relieve itching without damaging the cast or causing injury. Choice B, twisting the cast back and forth, can lead to discomfort, skin irritation, or even injury. Choice C, shaking powder into the cast, can create a mess, increase the risk of skin issues, and interfere with proper healing. Choice D, pushing a pencil under the cast edge, is dangerous as it can cause injury to the child's skin or the underlying tissues. Therefore, the safest and most effective option to relieve itching under the cast is to blow cool air from a hair dryer.

Correct Answer: A

Rationale: The correct answer is 'Ineffective airway clearance.' Following a ureter lithotomy via a flank incision, the highest priority nursing problem is ensuring the client's airway remains clear. This is crucial for effective breathing and oxygenation. Altered nutrition, fluid volume excess, and activity intolerance are important to address but are of lower priority compared to maintaining a clear airway postoperatively.

Correct Answer: C

Rationale: The correct answer is to implement seizure precautions. Phenytoin is an antiepileptic medication used for seizure control. Seizure precautions are crucial for clients taking this medication to ensure their safety during a seizure episode. Monitoring serum calcium levels (Choice A) is not directly related to phenytoin therapy. Obtaining a baseline electrocardiogram (Choice B) is important for some medications but not the priority for a client on phenytoin. Encouraging a low-protein diet (Choice D) is not specifically indicated for clients on phenytoin and is not the most important intervention.