When the asthma is diagnosed in the people of age greater than 20, the asthma is called the adult onset asthma. Accurate and early diagnosis of essential since asthma is a deadly disease and requires a life long treatment since it occurs very frequently triggered. In Canada, approximately 2.2 million adults are diagnosed asthma onset asthma.

Individuals having frequent cough, breathlessness, wheezing, chest tightness or sputum, chest pain may be diagnosed to have asthma. If these systems persists in an individual he/she much immediately consult a physician and go for definitive diagnostic testing.

 Your asthma may diagnose adult-onset asthma by taking a medical history, asking symptoms and checking your breath. He may also ask you to have along function testing spirometer, a device which measures peak flow rate, i.e. how much air you can exhale on taking a deep breath. If these methods won’t work, he may also ask you to have a methacholine test. On inhaling methacholine if the airways spasm and narrow then it is a clear diagnosis of asthma. Also performing a chest X-ray can help you in diagnosing a wide range of conditions including asthma by getting structures in your chest, including heart, lungs and bones.