New study tests quick, portable tools to diagnose asthma without hospital visits

This study looked at two simple tests—a breath test (FeNO) and a blood test (eosinophil count)—to see if they can diagnose asthma more easily than current hospital-based breathing tests. Researchers studied 123 people aged 12 and older with suspected asthma. The goal was to find out if these portable tests can reliably detect asthma and airway inflammation, potentially speeding up diagnosis and reducing the need for complex hospital procedures.