I have an 11 yr old female beagle that has been diagnosed with TCC and she will not always drink water. Eating has been okay to this point and we have even started her on an IV from the vet every other day. I tried pedialite w/ water and low sodium chicken broth w/ water, but I think she knows what I'm up to and will only drink from her bowl about once a day. Is the IV enough? HELP!!!