When you feed by syringe, you are giving a high volume of liquid. And if I remember correctly, ID is a low residue food - most of it is actually absorbed. So there may not be must to pass.
But contacting the vet was the correct thing to do. If you don't have any results by Wednesday morning, I would call the vet again.
But contacting the vet was the correct thing to do. If you don't have any results by Wednesday morning, I would call the vet again.