Thanks Eva.
It looks like Rudy has turned a corner!

He's been doing well for 2 days now. No major nose bleeds, more energy and breathing pretty good at rest. When I observe him at certain times, I get glimpes of how he was before Blasto. We called our good friend/neighbor to come over last night to see Rudy; she would have been thrilled at how well he looked. She's been so supportive & has suffered along with us through the tough times that we wanted to share this joyful moment with her. What a difference in how we feel when they are doing better, eh? Our friend wasn't at home but she'll see him on another particularly good time. We sure hope this positive trend continues.
I have written down questions to go over with the vet though-just to be sure i.e. re kidneys, MiraVista anitgen test, red & white blood cell count & platelets.
We've been doing the sub-q for the last 6 days or so. How long did you continue? Was it on the vet's recommendation or could we continue on our own accord with one 1,000 ml bag/day to keep Rudy's tissues hydrated for a few more weeks to help with his healing/recovery? I don't think you need a prescription. We bought our supplies from a medical supply store; it is approx $2/bag vs $17-$20 we've heard as the price from the vets (although we didn't check it out with our vets to be sure).
I'm also going to ask the vet about how it will be decided when Rudy can go off the two anti-biotics and back to one dose of 150 mg of Itraconazole. We don't want to take him off any meds before the right time; he's only beginning to show signs that he's on the mend but we also don't want to keep him on anything unnecessareily; I'm just afraid of a relapse of some sort if we take him off any of the meds too soon.
Thanks to all of you for your help & advice; I honestly don't know how we could have coped without your suport & valuable info and guidance. You and this site are a godsend.
Sheila & Paul