<prompt> Brodie Tredelenburg test is done for?Sapheno-femoral incompetenceDeep Vein thrombosisVaricose veinsSuperficial migratory thrombophlebitis  <response>: Ans. a Sapheno-femoral incompetenceRef.: SRB manual of surgery Page 228, 4th editionBrodie-Trendelenburg test is used to detect venous incompetence and to differentiate between perforator and Great saphenous incompetence. 