Effect of electric shock on a person

A 40-year-old power company employee touches a 10,000-volt wire and gets feels electric shock. He loses consciousness and falls 30 feet to the ground. During transit to the hospital less than 30 minutes after the injury, he becomes hypotensive, with a blood pressure of 75/40 and pulse rate of 140; he is pale and diaphoretic, and peripheral pulses are non-palpable. Explain the situation.