Firefighters have pulled a 62-year-old male patient from a bedroom that was on fire. According to the firefighters, the patient was smoking in bed and fell asleep. They found him supine on the floor. Assessment reveals him to be responsive to painful stimuli, with soot in his airway. He is breathing rapidly, but has no evidence of burns to his body. His pulse is 124 beats/min, respirations are 24 breaths/min, blood pressure is 146/90 mmHg, and SpO2 is 95%. After providing the appropriate care, which of these questions would be the most important to ask the firefighters prior to transport?

A) "How did the fire start?"
B) "How long was the patient trapped in the room?"
C) "Which materials were burning in the room?"
D) "How fast was the patient breathing when you found him?"

B) "How long was the patient trapped in the room?"