The nurse applies pressure over an area of the lower abdomen where the client reports pain. The client denies pain upon palpation, but reports pain when the pressure is released. Which action should the nurse implement?

A. Offer to administer a laxative prescribed for PRN use. Laxatives are not appropriate for managing rebound tenderness, which can indicate peritonitis or other serious conditions. B. Obtain a prescription to catheterize the client's bladder. Catheterization is not related to managing rebound tenderness. C. Notify the healthcare provider of the rebound tenderness. This is the best choice as rebound tenderness can indicate peritonitis or another acute abdominal condition requiring immediate medical attention. D. Instruct the client in distraction and relaxation techniques. While useful for pain management, this does not address the underlying serious condition indicated by rebound tenderness.