[anonymous]

Follow up with your regular vet, make an appointment within the next few days.
Isn’t that what the emergency clinic told you? Take a look at the discharge instructions.
Assuming the dog is stable, if not take him to the vet sooner.
Did the vet advise the diet that you are feeding? If not, I would go by what was recommended.
Add water to meals.
Maybe he’s not a water drinker and he became dehydrated.