Home > Pulmonary Function Test

There are several types of PFTs, each focusing on different aspects of lung function:

1. Spirometry: Measures the amount of air a person can exhale forcefully after a deep breath. It evaluates airflow obstruction, essential in diagnosing asthma and COPD.

2. Lung Volume Measurement: Also known as body plethysmography, this test measures the volume of air in the lungs, including the amount that remains after a full exhale. It helps determine lung capacity and diagnose restrictive lung diseases.

3. Diffusion Capacity Test (DLCO): Assesses how well the lungs can transfer oxygen from the air into the bloodstream. This test is crucial for diagnosing conditions affecting gas exchange, such as pulmonary fibrosis.

4. Peak Flow Measurement: Often used by asthma patients, this test measures the peak expiratory flow rate (PEFR) or how fast a person can exhale. Regular monitoring helps in tracking asthma control and adjusting treatment.

5. Methacholine Challenge Test: Used primarily to confirm asthma, this test involves inhaling methacholine to provoke bronchoconstriction, or narrowing of the airways, and measuring any decrease in lung function.