A few thoughts -
1) GFR (measure of kidney function) declines every year after around 60 so a figure that might suggest chronic kidney disease stage 2 (CKD2) in a 30 year old may be normal in a 76 year old.
2) you say your husband was only recently aware - did the medical pick it up? Mild renal impairment is very common in people with high blood pressure (with or without treatment) and if this is the case it may not be an appendix 10 condition (ie progressive).
3) an appendix 10 condition isn't an automatic bar to PR (or we wouldn't be here) - but it does make it a bumpier ride to get there!
What the MA is lookng for is cost of continuing treatment (less than $25k over a reasonable life expectancy), likelihood of progression to CKD 5 (end stage, requiring transplant or dialysis), cost of ongoing follow up / investigations.
Limited resources dictate stringent rules unfortunately. I tried to suggest that we agree to have private medical insurance when our application hit a similar hurdle but we were told that once they grant PR it is an automatic entitlement to public healthcare, such provisions cannot be enforced.
Probably no bad thing, I doubt any company would take us on without excluding pre existing conditions - and if they did we probably couldn't afford the premiums!
Best of luck with your application.
EoI in: 5th June 2008 (150 pts, no job offer)
ITA rec: 7th August 2008
ITA back: 30th November 2008
Job offer: 10th January 2009
Arrived: 19th May 2009
Loving it: all the time!