WellnessRheumatology

Overview

Pulmonary Function Tests (PFTs) are a group of non-invasive diagnostic tests that evaluate how well the lungs are functioning. These tests measure lung volume, lung capacity, air flow rates and gas exchange to help detect, diagnose and monitor respiratory conditions. PFTs are commonly used to diagnose and monitor asthma, chronic bronchitis, interstitial lung disease, pulmonary hypertension, and other lung diseases.

According to CDC data, nearly 25 million Americans have asthma and over 16 million suffer from COPD. Early lung testing utilizing Pulmonary Function Test can prevent complications.

Who Should Get a Pulmonary Function Test?

Your healthcare provider may recommend PFTs if you have:

Shortness of breath or difficulty breathing
Persistent cough or wheezing
Exposure to environmental toxins or smoking history
History of lung disease in your family
Pre-surgical screening for lung function
Existing conditions like COPD or asthma to monitor progress

Types of Pulmonary Function Tests

Spirometry

Spirometry is the most common PFT and measures how much air you can inhale and exhale as well as how quickly you can exhale.

Key measurements include:

This test helps identify obstructive lung diseases such as asthma and COPD.

PFT spirometry is often the first step in identifying common lung conditions and tracking treatment success.

We also provide spirometry test for lung function to help pinpoint early signs of breathing issues.

Lung Volume Measurement

This test determines the total amount of air the lungs can hold. It helps diagnose restrictive lung diseases where lung expansion is limited.

Common methods include:

Diffusion Capacity (DLCO)

Evaluates how effectively gas travels from the lungs into the bloodstream. This is used for diagnosing pulmonary hypertension and interstitial lung disease.

Peak Flow Measurement

Peak expiratory flow (PEF) measures how fast you can blow air out of your lungs. It is often used to monitor asthma at home.

Our tests are conducted in a controlled and safe environment ensuring accurate results and patient comfort.

How to Prepare for a Pulmonary Function Test

To ensure accurate results, patients may be advised to:

Avoid heavy meals before the test
Refrain from smoking for at least 4–6 hours prior
Avoid using certain inhalers or medications (as instructed by your doctor)
Do not consume caffeine before your appointment.
Wear loose, comfortable clothing
Avoid strenuous exercise before the test

How Long Does Pulmonary Function Tests Take

Most PFTs take between 20-45 minutes, depending on the specific test type. During the test, a breathing tube may be used to measure forced breathing, and you may be asked to take a deep breath and exhale in different patterns.

Understanding Your Pulmonary Function Tests Results

Results are compared to standard values based on age, gender, height, sex and ethnicity. Abnormal results may indicate:

Your healthcare provider will interpret the results and discuss the next steps, if necessary.

Why Choose Wellness Rheumatology & Primary Care?

Conclusion

Pulmonary Function Tests are vital for assessing lung health and diagnosing respiratory conditions early. They provide valuable insights that help guide treatment decisions and improve overall patient outcomes. If you are experiencing respiratory symptoms or have a chronic lung condition, consult your healthcare provider to determine if PFTs are appropriate for you.

Book Your Pulmonary Function Test

If you are searching for pulmonary function test, Wellness Rheumatology & Primary Care provides quick appointments and accurate assessments.