<prompt> Which of the following is M.C. cause of hypotension in fracture ribs T10-T12 -Abdominal solid visceral organ injuryInjury to aortaInter costal artery damagePulmonary contusion  <response>: MC cause of hypotension in trauma patients: Hemorrhage MC cause of shock after trauma is hypovolemia, and there are five places that a patient can lose large volume of blood:Externally, the chest, the abdomen, the retroperitoneum, and into muscle compartments Blood on the floor and four more. Fracture of lower ribs T9-T12 are usually associated with splenic or hepatic injuries Fracture of upper ribs T1-T3, clavicle or scapula is usually associated with major vascular injuries 