What is a Pulmonary Function Test?

A Pulmonary Function Test (PFT) is a non-invasive diagnostic procedure used to assess lung function and determine how well the lungs are working. It measures various aspects of lung capacity, volume, and flow rates to help diagnose and monitor respiratory conditions such as asthma, chronic obstructive pulmonary disease (COPD), and other breathing disorders.

How Does the Pulmonary Function Test Work?

During a Pulmonary Function Test, you will be asked to breathe into a mouthpiece connected to a spirometer, a device that records the amount and rate of air you inhale and exhale. The test typically includes several different breathing maneuvers to evaluate different aspects of lung function.
These may include:

• Spirometry: Measures the amount of air you can inhale and exhale, as well as how quickly you can do so.
• Lung Volume Measurement: Determines the total volume of air your lungs can hold.
• Diffusion Capacity: Assesses how well your lungs transfer oxygen from the air into your bloodstream.

Why Choose a Pulmonary Function Test?

A Pulmonary Function Test is an essential tool for diagnosing and managing a variety of respiratory conditions. It provides valuable information about your lung health and helps your doctor develop an effective treatment plan. The test is particularly useful for: