A dog in shock is another possible reason for shaking after being bitten. Shock is one of the most common causes of death in dogs after physical trauma other than infection.
A rapid heartbeat bright red gums shallow breathing and anxiety are early signs of shock. A dog might become lethargic develop blue gums and have a low body temperature if its not treated quickly. Your dog must be taken to the vet as soon as possible if there is any sign of shock.
Here are some things you need to remember to treat your dog when they're in shock before you take them to the vet.
If they have an open wound clean the area around it and press on it.
Restrain them to preserve energy and wrap them in a warm blanket to preserve body heat. Avoid giving them a heating pad or other artificial heat as it might cause their blood vessels to dilate.
Inspect their breathing and make sure their airways are clear.
Make sure they have good circulation by massaging them.
Make sure they are not fed or given fluids.