Life-Threatening Injuries The primary survey must identify life-threatening conditions, specifically major arterial hemorrhage, bilateral femur fractures, and crush syndrome. Hemorrhage control is critical, utilizing direct pressure and pressure dressings. Tourniquets are indicated for life-threatening hemorrhage but carry risks if left in place for prolonged periods; they should ideally be used when lethal bleeding cannot be controlled otherwise. Bilateral femur fractures signify that the patient was subjected to significant force and are associated with higher risks of mortality and pulmonary complications compared to unilateral fractures. Crush syndrome, caused by the release of myoglobin from compressed muscle, can lead to acute renal failure and requires early, aggressive intravenous fluid therapy.

Limb-Threate ...