Smoking can be a major cause or trigger for asthma attacks. The lung function test used in diagnosing asthma can provide an indication whether a person is a smoker, but in most cases it is not possible for a doctor to conclusively confirm that.
Smoking can be a major cause or trigger for asthma attacks. The lung function test used in diagnosing asthma can provide an indication whether a person is a smoker, but in most cases it is not possible for a doctor to conclusively confirm that.
