My cat was taken into the vet yesterday with what they said was a partial blockage. They said his urine presented with calcium crystals and there was particles (sludge) in the bladder. They told me to pay $1500 to catheter him and keep him for a few days but that almost leads to Re-blockage once the catheter is pulled so they recommend to put him to sleep. He is only 2 I was bawling so they offered to put in a catheter and inject saline and then flushed the bladder that way. He is home and went pee last night but now hasn’t gone pee for almost 24 hours . He is eating, taking his pills and drinking. Should I be worried what are the next steps ? I should mention that he didn’t drink or eat much yesterday. I am concerned it is almost 24 hours and he hasn’t gone pee. Could he be reblocked due to lack of fluids ?