Rapid heart rate and shortness of breath in dogs may be caused by respiratory diseases, heart disease, allergies, food poisoning, fever and diarrhea, weak cardiopulmonary function, etc. It may also be due to anxiety and fear, excessive excitement, short-nosed breeds, adjustment after exercise, etc.

It is recommended that the owner go to the hospital for examination and treatment of the dog to avoid aggravation of the condition and delay in treatment. If your dog suffers from heart disease, it is best not to take the dog for strenuous exercise to avoid accidents.