3. Give a Rescue Breath
Fully extend your pet's neck to open the airway. Then, cover your pet's nose with your mouth, close your pet's mouth with your hand and exhale into your pet's nose until you see the chest rise. Give two rescue breaths.

4. Repeat
Repeat steps one and two, and then check for a heartbeat and breathing. If your pet still isn't breathing or doesn't have a heartbeat, repeat the steps until you get to the veterinary hospital. If your pet starts breathing and you detect a heartbeat, then you've been successful in resuscitating your pet. In the event that this happens, it's important to note that your pet still isn't out of the woods. It's imperative that you have your pet evaluated as soon as possible by a vet because your pet is at risk of going into cardiopulmonary arrest again.
What If CPR Doesn't Work?
Even if you're unable to resuscitate your pet, continue to conduct cat and dog CPR and take your pet to the vet. A vet is equipped with life-saving emergency equipment like defibrillators, oxygen, injectable medications and other advanced life support systems that may still be able to save your pet. Even if your pet isn't breathing or has no detectable heartbeat when you get to the vet, you will have kept your pet's heart beating and lungs breathing with your CPR. Furthermore, any dog or cat that has suffered cardiopulmonary arrest and undergone CPR needs post-resuscitation care that can only be given by a vet. Usually, these pets will need additional testing to determine what caused cardiopulmonary arrest in the first place, and hospitalization and extensive monitoring to help them recover.
Being prepared to deliver first aid, including CPR, is an important part of preventing disaster in the life of your dog or cat. While it isn't ideal for a pet parent to perform cat or dog CPR, being prepared for this situation could mean the difference between life and death for your pet.