Another test to help clinicians diagnose asthma more accurately

(Elsevier) In order to assess the accuracy and reliability of a test that can be added to the clinician's toolbox to diagnose asthma -- fractional exhaled nitric oxide (FeNO) concentration -- researchers gathered and analyzed data from previous peer-reviewed studies. They conclude that the FeNO test has moderate accuracy for patients aged 5 and older. Their results are reported in Mayo Clinic Proceedings.