First let me address the question on the vital signs. Hypovolemic shock is caused by loss of blood (large amounts),blood pressure would be low..top number around 70 or 80, pulse rate high..120 or higher, breathing also fast. The skin will be pale, cool to touch and wet.
Treatment would be oxygen by mask @10 to 15 liters per minute, full spinal precautions, 2iv lines (1 in each arm) running wide open.
You would also keep pressure on the arterial bleeding, monitor vitals and rapid transport to a trauma center.
At the hospital I believe x-rays and blood word would be ordered, and depending on the results go to surgery, if internal bleeding was found.
As for the hairline fracture I don't think it would require surgery.