Final answer:
The mortality of a hypotensive and bleeding patient with a pelvic fracture is due to hypovolemic shock, which leads to organ failure if untreated.
Step-by-step explanation:
The mortality of a patient who is hypotensive and bleeding from a pelvic fx can be attributed to hypovolemic shock. Hypovolemic shock occurs when there is excessive loss of blood volume, either due to hemorrhage or dehydration. This condition leads to a decrease in blood pressure, decreased tissue perfusion, and ultimately, organ failure if not treated.
In the case of a pelvic fracture, significant blood loss can occur, leading to hypovolemic shock. The patient may exhibit symptoms such as a rapid heart rate, low blood pressure, cool and clammy skin, rapid shallow breathing, and decreased urine output. Prompt medical intervention is necessary to restore blood volume and stabilize the patient's condition.