Correct Answer: D

Rationale: The correct answer is D because directing water away from the stoma while showering is incorrect. The stoma can and should be cleaned with water. Choices A, B, and C demonstrate proper stoma care practices, such as changing the pouch regularly, changing the appliance in the morning, and emptying the collection bag when it is two-thirds full, which are all appropriate actions for caring for a urinary stoma.

Correct Answer: D

Rationale: The correct answer is D. When a patient develops erythema following radiation therapy, it is essential to avoid further irritation and potential infection. Using soap on the affected area can exacerbate the condition. Applying ice (choice A) may provide temporary relief for discomfort but does not address the underlying issue. Keeping the area cleanly shaven (choice B) is not necessary and may increase the risk of skin irritation. Applying petroleum jelly (choice C) can trap heat and worsen the erythema, so it is not recommended.

Correct Answer: D

Rationale: An absolute neutrophil count of 500/mm3 indicates severe neutropenia, putting the client at high risk for infection. Neutrophils are crucial in fighting off infections; a low count increases susceptibility to infections. Platelet count, white blood cell count, and hemoglobin levels are within normal ranges and do not require immediate intervention in this scenario.

Correct Answer: A

Rationale: The correct answer is A: The client's pain rating. Pain assessment should primarily rely on the client's self-report for the most accurate determination of pain intensity. Nonverbal cues from the client (choice B) can provide additional information but should not replace the client's self-report. The nurse's impression of the client's pain (choice C) may be subjective and less reliable than the client's self-assessment. Pain relief after appropriate nursing intervention (choice D) is an important outcome but does not replace the initial assessment of the client's pain.

Correct Answer: A

Rationale: The correct answer is A: Increased uric acid level. In tumor lysis syndrome, rapid cell destruction releases large amounts of potassium, phosphate, and nucleic acids into the bloodstream. Uric acid can accumulate rapidly, leading to hyperuricemia, which can result in kidney damage due to urate crystal deposition. Immediate intervention is necessary to prevent renal complications. Choices B, C, and D are incorrect because while electrolyte imbalances are common in tumor lysis syndrome, hyperuricemia with potential kidney damage is the priority concern that requires immediate attention.