We do fluids everyday and I don't have much to add to this great list of advice, but here's our routine.
-I warm the fluids with heating pad until it gets tepid, if it gets too hot, I cool it off in cold water.
-I go by touch also - no thermometer- the back of your hand is temp sensitive
-I have a set up in our laundry room, favorite bed on a counter, bag hanging on a plastic hanger about 3 feet up. the higher up, the faster it flows.
-new needle every stick. I put a new needle on after we're done and leave the wrapper on it so I know its new for next time.
-I pinch the scruff at the top of the shoulder blades and pull up a tent, then slide the needle in between my pinched fingers. I move it up and down between my fingers so I know its not in any muscle. Then I open it up full. Usually I keep one hand over the needle so it doesn't come out, but other times he is so still I don't even hold him.
-I use a sharpie to mark on the bag where I start and stop each day, and what day it is.
- My sugar cat never complains about the needle stick, but my civie (kidney) who gets fluids 2x/week will cry/squirm at the stick , then lays there without moving, just like the sugarcat.
-warming the fluids IS important, and the thinner needles might be a great idea for you.
-Sams sells a case of 1000 ml lactated ringers solution for about $23
-My vet said it is OK to use the tubing twice, so I do, and use a sharpy to mark each time I used it.
-Each cat has his own bag.
-I'm pretty careful to get all the bubbles out of the tube.
-If you pinch the skin as you pull the needle out and hold it for a few seconds, it helps with the leaking.