A patient informs you that he was recently diagnosed with an abdominal aortic aneurysm (AAA). The surgeon did not want to operate on the aneurysm immediately because he felt it was stable and not worth the risks that surgery posed. Tonight, the patient states that he suddenly developed abdominal pain and wants to be evaluated in the hospital to see if the AAA has increased in size. Given this history, which of these assessment findings would cause the EMT to suspect that the AAA is the cause of the abdominal pain?