Hmmm. Bleeding from the femoral artery can kill a person in a matter of minutes. It can also be very difficult to control a femoral artery bleed in the field. I was on a vehicle vs ped call (hit and run). The ped was hit approx. 5 min before our arrival, and almost all of his blood was in the gutter by then, due to his femoral artery bleed. In a pelvic fracture, bleeding into the pelvic cavity is suspected. A person can lose 2 liters of blood into the cavity with no external signs (expect for signs of hypovolemic shock). A pelvic fracture is a load-and-go trauma call. First, perform a killer survey for any immediately treatable conditions that could kill the person within a few minutes. Next, scoop or backboard the patient. A rapid but careful extrication from the vehicle is desired. Perform any other treatment enroute to the hosp (IV, oxygen, vital signs). In my EMS system, we can only use IV analgesics in isolated extremity burns or injuries. Thoracic and ABD injuries don't receive pain meds in the field. As for any privacy problems related to exposed genitals during the treatment of a critical trauma patient, it really isn't considered much in the situation. I mean, a slight effort is usually made to cover the area after examination, but if the covering affects the treatment, the area is left open for access and continual evaluation. Strip and flip is a term often used in pre-hospital trauma evaluation. You don't want to miss any hidden injuries.