question: sir im asking for my mother 61 year old. she is type 2 diabetic - past 30 years- treating with insulinhypertensive - past 10 years- taking amlong, nebitroy H since past 1 yearrheumatoid arthritc- past 2 year- methotrexate od weeklynow she is having pedal odema, creatinine 2.3, BUN -68.so what to do to protect kidney