pulmonary function test
Also written as: PFT — pulmonary function test
A group of tests measuring lung capacity, airflow, and gas exchange to assess respiratory function.
Full Definition
Pulmonary function tests (PFTs) are a comprehensive group of examinations that measure various aspects of respiratory function, including lung volumes, airflow rates, and gas exchange efficiency. In pediatric patients, these tests are adapted for age and cooperation ability, ranging from simple peak flow measurements in school-age children to infant pulmonary function testing using specialized equipment. Common indications include evaluation of asthma, cystic fibrosis, restrictive lung disease, and monitoring response to therapy. Tests may include spirometry, lung volume measurements, diffusion capacity testing, and exercise testing.
Usage
Usage note: Use plural form 'tests' when referring to the battery of examinations.
In Context
- "Serial pulmonary function tests showed progressive decline in FEV1 over the past year." — Clinic follow-up note
- "PFTs demonstrated moderate restrictive pattern consistent with the patient's underlying condition." — Diagnostic report