What Is a Lung Function Test Used For?
A lung function Test, also known as pulmonary function testing (PFT), is used to measure how well your lungs work by assessing airflow, lung volume, and oxygen exchange. These tests help healthcare providers evaluate the capacity and efficiency of your lungs, identifying how much air you can inhale and exhale and how effectively your lungs deliver oxygen to your blood. Lung function tests are often used to diagnose respiratory conditions such as asthma, chronic obstructive pulmonary disease (COPD), pulmonary fibrosis, or emphysema. They also help determine whether symptoms like shortness of breath, coughing, or wheezing are caused by lung-related issues.
In addition to diagnosis, lung function tests are valuable for monitoring disease progression and treatment effectiveness. Doctors may use them to track how well medications or therapies are working, especially in patients with chronic respiratory conditions. These tests are also commonly performed before surgery, in occupational health screenings, or to assess lung health after exposure to environmental toxins. By providing precise measurements of lung capacity and function, pulmonary testing enables healthcare professionals to develop personalized treatment plans that improve breathing efficiency, symptom control, and overall quality of life.
