A 30-year-old male is injured in a terror bombing. He experiences traumatic amputation of his left leg at at knee level. An improvised tourniquet was put in place by bystanders. The victim is conscious and in severe pain. Your first action should be to do which of the following?
A) Provide IV analgesia
B) put on pressure dressing
C) Confirm the tourniquet was properly applied
D) Check the airway