Conversation: The conversation between human and AI assistant.
[|Human|] My father in law is 70 but was walking all along until about three weeks ago. His right leg is swollen from the calf down. He is in so much pain he can t walk now. No history of diabetes. He is a smoker. He has had history of throat cancer 3 year back but was cleared of cancer after taking radiation. He did get radiation poisoning. What could the possibilities be that would cause him to not be able to walk? I m not sure what to ask the doctors to check for.
[|AI|]  Thank you for your question. Kindly rule out deep vein thrombosis, that is, a condition where blood inside the veins deep below the skin surface gets clogged due to clots. Him being a smoker and having history of cancer in the past are risk factors. Your doctor will most probably do a Doppler venous study of his right leg to rule out the same. He may require blood thinning medicine for the same if confirmed. I would advise you to get an appointment at the earliest.I hope his helps.