<prompt> In an asymptomatic abdominal aoa aneurysm, elective repair is indicated if the aneurysmal diameter is greater than5.5 cm6.5 cm7.5 cm8.5 cm  <response>: An asymptomatic abdominal aoic aneurysm in an otherwise fit patient should be considered for repair if 55 mm in diameter measured by ultrasonography. The annual incidence of rupture rises from 1 or less in aneurysms that are 55 mm in diameter to a significant level, perhaps as high as 25, in those that are 70 mm in diameter.Ref: Bailey and love pg: 961 