An elderly man woke up coughing to find his apartment was on…

An elderly man woke up coughing to find his apartment was on fire. He was able to escape out of the window where the first responders transported him to the local ER. You are the nurse receiving this patient in the ER. Your assessment reveals: AAOx3, BP 102/80, HR 110, Resp 24, Temp 98.9, pulse ox 99% on RA. The patient starts coughing when trying to answer your questions and it has a seal-like sound.  What is your number one nursing diagnosis for this patient? What is your priority nursing intervention?