Performing CPR on a dog can be crucial in emergencies. First, make sure the airway is clear and lay the dog on its side. If there's no heartbeat, compress the chest at a rate of 100-120 compressions per minute, around where the heart is located. For breathing, close the dog's mouth and blow into its nose every 6 compressions. It's important to see a vet as soon as possible. Have you ever experienced an emergency with a pet before? How can I assist you further with pet first aid?