Correct Answer: A

Rationale: The correct answer is to monitor the white blood cell count. Chemotherapy can lead to neutropenia, which is a decrease in white blood cells, particularly neutrophils. Neutropenia increases the risk of infections, making it crucial to monitor the white blood cell count during chemotherapy. Monitoring hemoglobin level is important but not as critical as white blood cell count in this scenario. Serum creatinine and blood glucose levels are not directly impacted by chemotherapy for breast cancer, making them less relevant to monitor in this situation.

Correct Answer: D

Rationale: The correct intervention is to give the missed dose at 1300 and adjust the schedule to administer daily at 1300. This approach ensures that the client receives the correct total daily dose of levofloxacin. Choice A is incorrect because contacting the healthcare provider and completing a medication variance form would not address the immediate need to administer the missed dose. Choice B is incorrect as administering the missed dose at 1300 and resuming the 0900 schedule the next morning would result in a missed dose for that day. Choice C is not the best course of action as notifying the charge nurse and completing an incident report should come after addressing the immediate need to administer the missed dose and adjusting the schedule for future doses.

Correct Answer: A

Rationale: The correct answer is A because understanding pain management involves considering non-pharmacological approaches, such as listening to music for relaxation and comfort. Choice B is incorrect as excessive sleep may not be an effective pain management strategy. Choice C is incorrect because pain medication may still be necessary even if pain levels are low. Choice D is not the best answer, as it simply states following the nurse's suggestions without demonstrating an understanding of personalized pain management techniques.

Correct Answer: A

Rationale: After identifying a problem in a client, the next step for the LPN/LVN is to determine the etiology or cause of the problem. Understanding the root cause of the issue is essential as it guides the development of appropriate interventions. Option B, prioritizing nursing care interventions, is premature without knowing the cause of the problem. Option C, planning appropriate interventions, also relies on knowing the etiology first to ensure the interventions directly address the underlying issue. Collaborating with the client to set goals, as mentioned in option D, is important but typically comes after understanding the cause of the problem to ensure the goals are relevant and effective.

Correct Answer: A

Rationale: The correct action when a client suddenly grabs at their neck and appears frightened is to ask if they are choking. This allows the nurse to gather more information from the client directly. Performing abdominal thrusts (choice B) should only be done if the client is unable to speak, cough, or breathe. Calling for emergency help (choice C) should be done after assessing the situation and confirming choking. Checking the client's airway (choice D) is important but should come after confirming that the client is choking.