A nurse is assisting with the care of a client who is receiving a PCA pump following a hysterectomy. Which of the following findings should the nurse identify as an indicator of unrelieved pain?

A. Difficulty swallowing: Difficulty swallowing, or dysphagia, is not typically a direct indicator of unrelieved pain. It could suggest neurological or throat-related issues rather than being a primary symptom associated with inadequate pain control. B. Constipation: Constipation is a common postoperative complication, often related to anesthesia, immobility, or opioid use. While it is important to address, it does not directly reflect the client's current pain level or effectiveness of pain management. C. Urinary retention: Urinary retention can occur due to anesthesia effects, pelvic surgery, or opioid administration. Although it is a significant postoperative concern, it is not a reliable or direct indicator of unrelieved pain. D. Restlessness: Restlessness is a common sign of unrelieved pain, particularly in postoperative clients. When clients are uncomfortable or in significant pain, they may appear restless, anxious, or unable to remain still, signaling the need for further pain assessment and intervention.