The nurse assesses an adult client 24 hours following abdominal surgery and finds the client's blood pressure is 98/40 mm Hg. The client is tachycardiac, restless, and irritable. Which action should the nurse perform first?

A. Ensuring that the IV solution is infusing at the prescribed rate is an important task to maintain adequate fluid and electrolyte balance, especially if the client is experiencing signs of shock or low blood pressure. However, this action alone does not address the immediate need to assess or intervene for potential critical issues such as bleeding or severe hemodynamic instability. B. Listening to lung sounds can help assess for pulmonary complications, such as fluid accumulation or atelectasis, which can be relevant postoperatively. However, in the context of hypotension, tachycardia, and altered mental status, the priority is to address potential critical issues related to circulatory stability and bleeding. C. It is essential to inform the healthcare provider of the client's condition, but this should be done after initial interventions to stabilize the client. This action is necessary but not the first priority. D. The first action should be to check for any signs of bleeding, especially after abdominal surgery where internal bleeding is a possibility.