Diagnosing asthma can sometimes be challenging. While symptoms such as wheezing, coughing, and shortness of breath are common indicators, confirming the diagnosis often requires additional testing. Traditionally, doctors rely on lung function tests such as spirometry, peak flow monitoring, and bronchodilator response tests. These methods focus on identifying changes in airway function. However, these tests do not always detect asthma, particularly in patients with mild sympto

Breath testing is a powerful, non-invasive diagnostic tool, but accurate results depend on correct sampling. Learn why breath-holding and end-tidal samples are essential for reliable breath analysis.