What are Pulmonary Function Tests (PFT)?
PFTs are a series of breathing tests. These tests measure the size of your lungs, and the speed in which air moves through the airways. These tests give your doctor details about how well your lungs work. Your doctor may choose from many types of breathing tests. Testing time may vary from 15 minutes to 1.5 hours. The length of the test depends on which tests are ordered. Why do I need to have PFTs? There are many reasons why your doctor has ordered these tests. The most common reasons are to assess: • Presence of lung disease. • Cause and extent of lung problems. • Type of treatment for lung problems. • Risk for surgery. How do I prepare for PFTs? • Do not eat or drink any caffeine products – coffee, tea, colas, or chocolate the day of test. • Avoid eating a heavy meal just before testing. • Wear comfortable clothing. • Do not smoke the day of the test. • Try not to use your inhaler for 24 hours before the test unless you have trouble breathing or your doctor has told you to take it b
