I just saw this thread, and I'm glad they found out that it was a simple problem causing the diarrhea and it should be gone soon.

I wanted to comment for the benefit of cat owners because of this...

Quote Originally Posted by catnapper
I have the stool sample (completely covered in litter I hope they can do something with it)
We get alot of clients that don't/won't bring stool samples for cats because of litter in it. One of my jobs as vet assistant is to run the stool samples. Litter is NOT a problem. The liquid we put in the test tube with the sample separates litter and allows us to get down to the parasites and eggs.

What DOESN'T work is when people bring in stool samples in paper towels/toilet paper/kleenexes. Those things absorb the sample and we usually can't get that separated out. Anything NON absorbent works zip lock baggies, old butter dishes or basically anything plastic.

Also any stool sample has to be SOFT for us to run it. An old sample two days old or more is too hard to run. I run into this more often with dog owners who took the dog out in the wee dark hours of the morning and had to guess which sample was the most current one, usually it's the old one they end up bringing.

Frozen samples are impossible to run because freezing kills off the parasite eggs resulting in a false negative (refrigerating is fine though).

Just wanted to give a heads up that might make some other vet assistants job easier, and help out those pet owners who didn't think they could bring in a sample because of litter or being liquidy.