You are confronted by a scene in which a patient is entangled in debris from an explosion at a chemical factory. You see that the path to the patient appears to be smeared with chemical residue that you can't identify but that seems to be bubbling. You need to:
A. Look around for anything that might be laid down over the residue to get to the patient.
B. Rush to where the patient is to initiate treatment immediately.
C. Wait for the patient to be properly decontaminated before initiating treatment.
D. Ask specialized personnel to identify the chemical and proper safety precautions.