I have Ringers, Metacam, handfeeding formula (2 different types), B supplement, vitamin C; have added additional water bottles and am providing plenty of wet veggies...all of the usual things to try to provide supportive care. Just curious if anyone here is aware of any new treatment info (drugs/supplements, etc.) that might be helpful in dealing with this---at least to slow down the progression somewhat. I'm not really 'up' on latest.
Fuzzies Kingdom actually makes a good kidney support formula that I've had good results with in the past, but this particular guy won't eat it.
The only thing you may need to add at later stages is iron supplement and erythropoetin, a red cell forming agent, because advanced renal failure is accompanied by anemia.
My Peek was diagnosed with kidney failure - same thing? Neither of us could handle my trying to do the IV (I have bad tremors and kept pulling the needle out), so I switched to giving him 30 - 60 cc of pedialyte orally a day. He loves it, and so does Fuzz, whom we have to fight off until Peek gets as much as he wants, then she gets the rest. His weight has stabilized in the high 900s, down from his original of about 1200. Other than that he's much more active since I started the pedialyte, and dances and chitters for his food. Of course, I have to change out the blanket they spend most of their time on every other day, because he soaks it pretty quickly. He insists on climbing on top of his fleece hideys, so they get washed a lot more often than they used to also. It's worth it. He was my very first guinea pig and I will have had him 5 years if he lasts through March.
Good luck with your little one.