Being tested for asthma will typically include a medical history, including any pattern related to the symptoms or possible precipitating factors. Spirometry, which uses pulmonary function tests to study the air volume and flow rate within the lungs, can help detect asthma. Your doctor will look at vital capacity, peak expiratory flow rate and forced expiratory volume.
Cough variant asthma, or CVA for short, is a less common form of asthma that is characterized by the fact that its only symptom is a chronic cough. People who have CVA do not generally have the other common symptoms of asthma, such as wheezing, shortness of breath and chest tightness. CVA is an especially common diagnosis in young children, and it…