Hello Amy and everyone else with bladder sludge problems...
I kind of fell off the radar for awhile. We've had quite a bit of drama here fighting the bladder sludge problem at home.
I saw someone posted about the Potassium Citrate and mentioned my rabbit Jack. Yes, he is 1700 grams and is on .85cc twice per day mixed with banana. I think that's about double than what I saw mentioned above. Not sure why. Jack is a pretty small rabbit from my perspective. 1700 grams is less than four pounds.
I don't have anything to report yet with respect to the success or failure. I started the Potassium Citrate in April but stopped after I thought he was having a seizure one morning. I have been back on since 5/7 and the only thing that happened was an abnormal amount of thick sludge in the litter box all last week. My understanding is that the Potassium Citrate should bond with the excess calcium BEFORE it gets to the bladder. However, I'm going to be patient, hope that was just the last big round being expelled, and go in for an x-ray later this month. With any luck, we'll have less sludge.
FYI - we're still on 35cc of fluids every other day. I saw Amy's struggles with the fluids. I had a terrible time at first too. I may be lucky in that Jack doesn't struggle at all anymore but the process has become very simple after doing this every week for 9 months. I sit on the floor with my legs crossed and put Jack on the floor in the middle. He will put his head under my leg while I insert the needle sometimes. I don't use any towels or anything to cover him. I just have everything ready before I start, including the syringe needle inside of the butterfly needle's plastic opening. One hint - Unscrew and remove the cap on this end of the opening. The vet tech taught me to punch through the cap but I had problems with the plastic clogging up the needle in the syringe. I also learned how to buy all of these supplies in bulk to save money.
http://www.allegromedical.com/ It took some time to figure out the right part numbers so that I was using EXACTLY what the vet was selling me. But, I figured it out and this has helped. Back the process: once you find the right technique (which is hard to describe) for placement of the smaller butterfly needle, everything will fall into place.
Good luck with the fluids. I imagine it's slightly different for every rabbit.
I will let you know if we have success with the potassium citrate at the dosage mentioned.