You Are Entering the Scene Where a 32-Year-Old Intoxicated Male

You are entering the scene where a 32-year-old intoxicated male has fallen down 13 stairs leading to the basement. He is seated on the floor of the basement, holding a bloody towel over his face. During the initial scene size-up, what is it essential that the EMT quickly identify?

A) The patient's level of consciousness
B) Possible need of additional personnel
C) Status of the patient's airway and breathing
D) Amount of alcohol consumed by the patient