<s>[INST] sir i am here for liver transplant of my father and i am the donor.i smoke 20 cigrattes a day and is smoking from 4 years and now i want to detoxify my lungs as quickly as possible because surgery is planned after 6 days.what u advice that i should go for surgery or not and if yes so whta should i do? [/INST] Hi and welcome to Chat Doctor. Thank you for your query. I am Chat Doctor, I understand your concerns and I will try to help you as much as I can. It is safe, but it carries somewhat increased anesthesia risk. It won't affect the surgery process or rate of efficiency. I hope I have answered you query. If you have any further questions you can contact us in every time. Kindly regards. Wish you a good health. Chat Doctor.  </s>