your medical knowledge surely surpasses mine, because I'm just the mom of a type
-1 diabetic and the wife of a type 2
. From a diabetes
point of view, there's probably nothing else to do besides the continuing effort for tighter BS control. It would seem wise to consult a renal specialist, to find out if a ratio above norm is reason for concern or not, and what if anything can be done about it.
good luck, and sorry I can't provide specific medical advice.