'It seems like acute respiratory dysfunction.'.
D001784:Blood Gas Analysis; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D009730:Nursing Assessment; D009736:Nursing Process; D012131:Respiratory Insufficiency / Q000097:blood / Q000175:diagnosis / Q000451:nursing*; D012907:Smoking