There is no single test for asthma. Your doctor will decide if you have asthma based on talking to you, examining you and performing some breathing tests.
Silicosis is a lung disease caused by inhaling unsafe levels of silica dust, usually over a period of many years. Find out how to minimise the risk.
Chronic obstructive pulmonary disease (COPD) is an umbrella term for certain long-term lung conditions including emphysema and chronic bronchitis.