Pulmonary function testing (PFT) evaluates lung function by measuring lung volumes, capacities, rates of flow, and gas exchange. The financial investment associated with these tests varies considerably based on several factors, including geographic location, the healthcare provider administering the test, and the complexity of the PFT battery performed. A simple spirometry test, a component of a comprehensive PFT, will typically have a lower cost than a full PFT that incorporates spirometry, lung volumes, and diffusion capacity measurements.
Accurate assessment of respiratory health is crucial for diagnosing and managing various pulmonary conditions, such as asthma, chronic obstructive pulmonary disease (COPD), and interstitial lung diseases. Pulmonary function tests provide objective data that aids clinicians in determining the severity of lung disease, monitoring treatment response, and guiding therapeutic interventions. Historically, PFTs have played a vital role in occupational health, helping to identify and prevent work-related lung diseases. The information derived from these tests informs decisions related to patient care and resource allocation within healthcare systems.