The vet will be able to identify an emergency and will advise you to go to a clinic or (if all nearby clinics are closed) a local emergency room.
If your pet is experiencing one of the following symptoms, we recommend you call your nearest veterinary hospital right away: Lack of response or unconsciousness, seizures, collapse, bleeding that won't stop, pale gums, severe injury or pain, bloated abdomen, inability to urinate, shallow or rapid breathing.