A lung function test used to help diagnose asthma works better in the morning, becoming less reliable throughout the day, ...

rather than immediately testing a person’s pulmonary function with a trial of bronchodilators -- a standard diagnostic test for asthma. Sometimes a pulmonologist will order a “methacholine ...

Dear D.S.: Although most people think that asthma causes wheezing, cough is a very common symptom of asthma. You've named the ...

A new study highlights the significant impact of time of day and season on bronchodilator responsiveness. Read more.