A nurse is providing education to a client who is scheduled for a left knee arthroplasty. Which of the following statements regarding informed consent indicates client understanding of the teaching?

Choice A reason: Restricting fluids to 1,200 mL per day is not indicated post-hernia repair unless specific conditions like heart failure exist. Adequate hydration supports recovery and prevents complications like constipation. This restriction is arbitrary and potentially harmful, making it an incorrect plan component.
Choice B reason: Encouraging deep breathing exercises every 2 hours prevents pulmonary complications like atelectasis or pneumonia, common risks post-hernia repair due to anesthesia and pain-limited breathing. This promotes lung expansion and oxygenation, aligning with evidence-based postoperative care, making it the correct intervention.
Choice C reason: Applying a warm compress to the surgical site is not recommended, as it may increase swelling or risk infection in the early postoperative period. Cool compresses, if needed, reduce edema. This intervention lacks evidence and could harm healing, making it inappropriate.
Choice D reason: Limiting ambulation for 48 hours delays recovery, as early mobility post-hernia repair reduces complications like thromboembolism and promotes healing. Patients are typically encouraged to walk within hours, making this restriction counterproductive and against standard postoperative protocols, thus incorrect.

Choice A reason: Cheyne-Stokes respirations, alternating hyperventilation and apnea, indicate neurological dysfunction or end-of-life changes in brain tumor patients, not pain. This reflects brainstem involvement, requiring respiratory management rather than analgesics, as it is a physiological response to disease progression in palliative care.
Choice B reason: Mottled skin signals poor perfusion or impending death, common in palliative care as circulation declines. It is not a pain indicator but a sign of systemic shutdown, requiring comfort measures like warmth, not analgesics, which are irrelevant to this physiological change in terminal illness.
Choice C reason: Constricted pupils may reflect opioid effects or neurological changes in brain tumor patients but do not directly indicate pain. They suggest autonomic or brainstem dysfunction, necessitating neurological assessment, not immediate pain medication, in palliative care where comfort is prioritized based on clear pain cues.
Choice D reason: Grimacing indicates pain in palliative care patients with brain tumors, reflecting physical discomfort. As a facial expression of distress, it signals the need for analgesics to improve comfort and quality of life, aligning with palliative goals to manage pain effectively in end-stage disease.