Final answer:
The highest priority finding for a nurse caring for a client recovering from an abdominal aortic aneurysm repair would be pedal pulse amplitude.
Step-by-step explanation:
The highest priority finding for a nurse caring for a client recovering from an abdominal aortic aneurysm repair would be pedal pulse amplitude. The pedal pulse amplitude assesses peripheral circulation and can indicate the patency of blood vessels and tissue perfusion. A weak or absent pedal pulse amplitude may suggest impaired blood flow and compromised tissue perfusion, which could be a sign of a postoperative complication such as a clot or bleeding.