The driver of a truck carrying a radioactive substance has accidentally come into contact with the material. You are first on the scene and a quick observation indicates that he still has the powder on his arm. Which one of the following should you do immediately?

A) Rinse the powder off the arm and wrap with a sterile dressing and roller gauze.
B) Provide basic care, but avoid touching the patient's arm.
C) Instruct the patient to remain still until proper removal of product can be accomplished.
D) Place the patient in the ambulance, but avoid touching him en route to the hospital.

C