Your 35 Year Old Male Patient Was Bitten by a Snake

Your 35 year old male patient was bitten by a snake on the ankle. His friend wrapped a tight belt around his calf before your arrival and the patient's pulse is absent below the tourniquet. You should

A) keep the belt on and consult with medical direction before you take any action regarding the belt.
B) keep the belt on and then remove the belt just before the patient arrives at a treating facility.
C) immediately remove the belt and do not reapply the belt even if the patient's symptoms worsen.
D) immediately remove the belt and put the belt back on if the patient's symptoms worsen.