Initial diagnostic testing for dogs who are having trouble breathing can involve a complete blood count, biochemical profile, fecal examination, urine analysis, and chest x-rays. Additional procedures and testing may also be necessary. These can include ultrasound imaging, an electrocardiogram , specialized blood tests, analysis of fluid samples, rhinoscopy or bronchoscopy (using an instrument to look inside the nose or airways, respectively), surgery, and tissue biopsies, depending on the particulars of a dog’s case.
Some breeds of dogs have been bred to have narrow or distorted airways ( nose, nasal passages, pharynx and larynx ). Those are the breeds that tend to snore ( stertor, stridor ). They are called the brachycephalic breeds . When these pets have any sort of inflammation or swelling in those areas ( such as in kennel cough, allergies, smoke exposure, etc. ) they can have difficulty obtaining enough oxygen. Because their airflow is marginal even in the best situations, they are also the breeds first to suffer from heat stroke and heat exhaustion. In all those situation, they tend to breath faster and more labored ( dyspnic ). Similar situations can occur in non-brachycephalic breeds when tumors, polyps, or laryngeal paralysis occur.
Any dog which has some Pug in it may be prone to narrowed airways due to their anatomy; also Yorkshire Terriers may also have disorders like collapsing trachea etc… These problems may only present during times of excitement, exercise or stress which would correlate to the breathing difficulties when excited; it would be best to visit your Veterinarian to have a check of Appa’s respiratory tract to make sure there is nothing too or immediately serious and to determine a course of treatment if required. Regards Dr Callum Turner DVM