Conversation: The conversation between human and AI assistant.
[|Human|] I have CRPS of the upper right extremity.  I have red mottling on both arms and legs.  Now there is swelling in both of my calves, ankles, and feet.  On my ankles and feet there is blue to purple discoloration.  I take nine medications and I dont know if theyre affecting my kidney function or what.  Im quite nervous about the whole issue.  Do you have any idea what might be causing the edema and mottling?
[|AI|]  Hi and welcome to Chat Doctor. Thank you for your query. It can be kidney or liver disease as well as heart disease. You need to check your protein blood levels, liver function tests and kidney tests. Ankles swelling may also be caused by venous insufficient and skin changes can be caused by hypos attic dermatitis. So till you do these tests try to stand as less than you can, keep your legs elevated, use some elastic stockings and see will there be improvements. Wish you good health.