Spirometry is a common medical test used to measure how well your lungs are functioning. It assesses the amount of air you can inhale and exhale, as well as how quickly you can do so. This test helps doctors diagnose conditions like asthma, chronic obstructive pulmonary disease (COPD), and other respiratory issues. During the test, you will be asked to breathe into a device called a spirometer. The spirometer records your breathing patterns, providing valuable information about lung capacity and airflow. The results can help guide treatment decisions and monitor the effectiveness of therapies for lung-related conditions.