If your pet is not visually breathing, place your ear on his chest and listen for a heartbeat or take his pulse. If he has stopped breathing, artificial respiration can maintain the essential supply of oxygen to the blood and body tissues. Before beginning artificial respiration, try to identify what may be causing the problem.
Many things can cause breathing difficulties for cats and dogs:
If the animal has breathing difficulties, clear the airway and, if necessary, start artificial respiration:
Perform CPR if you cannot detect a heartbeat. Apply CPR in conjunction with artificial respiration. An animal that is not breathing may still have a pulse, but if the heart has stopped, breathing will not occur.
In most cases, artificial respiration and CPR will serve only as a means of keeping a victim alive until a medical professional can treat him. If your pet seems to be having heart or breathing difficulties, contact a veterinarian immediately.