In this video, Dr. K K Aggarwal, Padma Shri Awardee, Editor-in-chief IJCP Publications, will discuss when it is fit to travel. A six minute walk test is conducted to decide whether a person is fit to travel or not. Dr. Aggarwal explains that if a person is able to walk 200 metres in 6 minutes then he is fine and if he can walk more than 500 metres then he is fit. After the six minute walk test, if the oxygen saturation is less than 4, he is not fit and needs to get checked. Dr. Aggarwal also says that if the haemoglobin is less than 8.5 grams then the person may require supplemented oxygen during the air travel. Also, if the flight is more than 8 hours or is covering a distance of more than 500 kilometres, then he is likely to get a pulmonary embolism and a DVT. Such patients require a DVT prophylaxis and stand every few hours and need to be hydrated during the flight.