A pulmonary function test measures how well your lungs work. You put your mouth on a mouthpiece and breathe. Your results should be available after a few days.

Jan 23, 2023 · In this article, we look closely at the different types of PFTs, when they’re used, and what conditions they may help diagnose. A doctor will order one or more PFTs, also known as lung...

May 12, 2025 · They are performed by a pulmonary function technician, who will require you to use maximal effort to blow out and breathe in air. The tests will be repeated to make sure the results are …

Sep 5, 2024 · Learn how pulmonary function tests (PFTs) diagnose chronic respiratory conditions and what to expect before, during and after your test.

Pulmonary function tests (PFTs) are tests that show how well your lungs are working. The tests measure lung volume, capacity, rates of flow, and gas exchange. This information can help your healthcare …

Sep 28, 2025 · You may take a pulmonary function test (PFT) to help diagnose and treat conditions like asthma and COPD. For a spirometry test, you blow hard into a machine to measure lung volume and …

Jan 11, 2026 · The Procedure and Testing Methods The core component of a PFT is spirometry, which measures airflow and volume. To perform this, the patient wears a nose clip and seals their mouth …

Your doctor will compare the results of your tests with normal values based on your age, sex, and height, or previous test results. Your doctor will discuss the results with you and decide if further …

Sep 10, 2025 · A pulmonary function test (PFT) is very simple. This test uses a sealed, transparent chamber, a mouthpiece, soft nose clips, and an electronic spirometer to measure the flow of air in …

A pulmonary function test shows how well your lungs are working. A complete test has 3 parts. You may be given the full test or only certain parts. The full test is painless and can last 45 to 90 minutes.