Conversation: The conversation between human and AI assistant.
[|Human|] hi my mother has some problem in her lungs last month and took some medication to avoid infection. now she had to go to the doctor because she developed and edema in her lower extremities and always sleepy. she was suspecting it due to her kidney stone, which was diagnosed years back. had some lab test, ultrasound and yes, the stone is still in her kidney but lab results says her BUN and creatinine are normal and besides she has no pain whatsoever in her lower back. i m worried that her edema is due to cardiac temponade which is also related to her lung problem last month and not due to her kidney stone. please enlighten me about this. thank you in advance.
[|AI|]  Hi, thanks for this interesting question. Lung diseases are known to be chronic- long-standing diseases. They are also known to lead to cardiac complications which can manifest in the form of edema of lower limbs. Kidney stone obstruction can lead to back pressure on kidney, and it can also lead to limb swellings. Now on e needs to find out the exact cause of edema. Your mother needs complete urological and cardiac evaluation to pinpoint the cause of limb swelling. Since BUN and creatinine are normal, there is no worry of kidney failure. Heart failure and Kidney stones needs to be investigated. Treatment will finally depend on the cause. Best luck.