Correct Answer: A

Rationale: The correct action the nurse should take first when a client reports nausea in the PACU is to turn the client on their side. This action helps prevent aspiration in a client with nausea, reducing the risk of choking or inhaling vomitus. Administering an analgesic (Choice B) is not the priority in this situation unless pain is the primary cause of nausea. While administering an antiemetic (Choice C) can help relieve nausea, it is not the initial action to prevent aspiration. Monitoring the client's vital signs (Choice D) is important but should come after ensuring the client's safety by turning them on their side.

Correct Answer: B

Rationale: The correct action the nurse should include in the plan of care when caring for a client receiving hemodialysis is to check the vascular access site for bleeding after dialysis. This is crucial to monitor for any signs of bleeding or complications at the access site. Withholding all medications until after dialysis (Choice A) is not necessary unless specified for certain medications. Rehydrating with dextrose 5% in water for hypotension (Choice C) is not appropriate for addressing hypotension related to hemodialysis. Giving an antibiotic 30 minutes before dialysis (Choice D) is not typically indicated unless there is a specific medical indication for prophylactic antibiotic use.

Correct Answer: D

Rationale: The correct answer is D: Positive rheumatoid factor. A positive rheumatoid factor is a common laboratory finding in clients with rheumatoid arthritis, indicating an autoimmune response. Option A, increased WBC count, is not typically associated with rheumatoid arthritis. Option B, decreased hemoglobin, and option C, decreased platelet count, are not specific laboratory findings for rheumatoid arthritis.

Correct Answer: D

Rationale: The correct answer is D. Dyspnea in a client with COPD receiving oxygen should be reported as it may indicate worsening respiratory status. Oxygen saturation of 95% is within the expected range for a client receiving oxygen therapy and does not require immediate reporting. A productive cough with clear sputum is a common symptom in clients with COPD and does not necessarily warrant urgent reporting. A respiratory rate of 22/min is also within normal limits and does not raise immediate concerns in this scenario.

Correct Answer: D

Rationale: The correct answer is D because taking metformin with food helps reduce gastrointestinal discomfort, a common side effect of the medication. Choice A is incorrect as metformin is usually taken with meals to minimize side effects. Choice B is incorrect because metformin does not typically cause urine discoloration. Choice C is incorrect as metformin is associated with weight loss or weight neutrality rather than weight gain.