FCEM2-1492

A 68-year-old patient with advanced metastatic lung cancer is experiencing significant shortness of breath and appears to be in distress. The patient is alert and currently not experiencing any pain. They have been informed that they have only a few days left to live. Their oxygen saturation levels are currently at 95% on room air, and there are no specific signs of chest abnormalities.
What is the most suitable course of action to address the patient’s breathlessness in this situation?