Correct Answer: C

Rationale: In the context of chronic pain management, the most concerning finding is when the patient's pain persists despite medication. This suggests inadequate pain control or the need for a re-evaluation of the treatment plan. Choices A, B, and D are not as concerning in this scenario. A pain level of 6 on a scale of 0 to 10 is moderate and may be manageable with appropriate interventions. Patients with chronic pain can sometimes lie still due to pain or other reasons, and anxiety and restlessness are common in individuals with pain conditions but may not necessarily indicate a critical issue like uncontrolled pain.

Correct Answer: B

Rationale: The most effective intervention in preventing postoperative complications is to ambulate the patient as soon as possible. Early ambulation helps prevent complications like deep vein thrombosis and pneumonia by enhancing circulation and preventing respiratory issues. Encouraging the patient to drink fluids, perform deep breathing exercises, or range of motion exercises are beneficial interventions, but ambulation is the priority due to its overall impact on preventing various postoperative complications.

Correct Answer: C

Rationale: The correct answer is C. According to the gate control theory, meditation helps relieve pain by blocking pain impulses from coming through the gate in the central nervous system. Choice A is incorrect as meditation does not directly alter the chemical composition of pain neuroregulators. Choice B is incorrect because meditation does not stop the occurrence of pain stimuli. Choice D is incorrect as meditation does not open the gate but rather closes it to block pain impulses.

Correct Answer: B

Rationale: The correct answer is to recheck the blood pressure before calling for help. When caring for a client with unstable blood pressure, the nurse's priority is to ensure an accurate assessment. Rechecking the blood pressure will confirm the instability and guide further actions. Asking the charge nurse for assistance (Choice A) is important but should come after assessing the situation. Monitoring the client's blood pressure closely (Choice C) is essential, but the immediate action should be to recheck and confirm the current status. Administering antihypertensive medication immediately (Choice D) without a confirmed assessment can be dangerous and is not the initial priority.

Correct Answer: B

Rationale: The correct answer is B: Check the tube placement before administering any medication. Before administering medication through a nasogastric tube, the nurse must first verify the tube's correct placement to ensure the medication reaches the stomach and to prevent complications such as aspiration. Options A, C, and D are incorrect because administering medication without confirming proper tube placement can lead to serious consequences for the client.