Conversation: The conversation between human and AI assistant.
[|Human|] My father had pneumonectomy (removal of his left lung) two year ago due to lung cancer. He is now 73 in good health. he is able to walk very easily for a hours, but he could not do chores. Stairs could also be a challenge for him. he is considering traveling on a commercial flight for about 15 to 18 hrs. Do you think he can do that with his condition. Would portable oxygen supply help in this case?
[|AI|]  Thanks for your question on Chat Doctor. I can understand your concern. Your father is living on single lung. So breathlessness on exertion (climbing stairs) is expected. He can definitely fly long miles without fear. He can keep oxygen cylinder with him in case he feels breathless. So, no need to worry, you can send him on flight. Hope I have solved your query. I will be happy to help you further. Wishing good health to your father. Thanks.