It could get sick but it would depend on a lot of things. How long ago did the mouse eat the poison? How much did it eat? How much was still in it's system when if finally died? most importantly how long ago did the cat eat the mouse? If it was right then the vet may give charcoal to help protect the cat from the poison. it it was while ago they may give fluids to dilute the poison. I don't think in any case death would be the result.
at 1:25 PM on Nov. 20, 2009