<prompt> The most common site of rupture of Abdominal Aoic Aneurysm is:Laterally into the Left RetroperitoneumLaterally into the Right RetroperitoneumPosteriorly into the Posterior RetroperitoneumAnteriorly into the Peritoneum Intraperitonial  <response>: Abdominal aoic aneurysm rupture frequently leads to the leakage of blood into the left retroperitoneal space. It is associated with sudden onset or increase in abdominal or back pain. It is maximal at the time of onset. Patients become hypotensive, tachycardic and diaphoretic and on examination show signs of peritoneal irritation. Treatment involves open repair of the vessel with replacement of the diseased segment with a Dacron graft. Ref: Irwin and Rippes Intensive Care Medicine By Richard S. Irwin, James M. Rippe, 6th Edition, Pages 385-6 