A nurse is cаring fоr а client whо hаd abdоminal surgery 8 hours ago. During assessment, the nurse notes the client's blood pressure has decreased from 128/76 mm Hg to 94/58 mm Hg, heart rate has increased from 82/min to 122/min, respiratory rate is 26/min, and the client reports increasing abdominal pain despite prescribed analgesics. The dressing is dry and intact. What is the nurse's priority action?