Pulmonary Function Tests at Center (PFT)

Also known as Spirometry, Spirogram, Lung function tests, Body Plethysmography

This test is for

Male, Female

Earliest reports in

24-48 hours

Test Preparation

Take your daily medications before your test unless your doctor tells you not to.
If you use a short-acting inhaler, try not to use it for 6 to 8 hours before the test. If you have to use it, let your doctor know before the test.
Avoid smoking for at least 6 hours before the test.
Don’t drink alcohol at least 4 hours before the test.
Don’t eat a large meal at least 2 hours before the test.
Don’t exercise for at least 30 minutes before the test.
It is advised to wear loose clothing that does not squeeze the chest or interfere with breathing.

Understanding Pulmonary Function Tests at Center (PFT)

What is Pulmonary Function Tests at Center (PFT)?

Pulmonary Function Tests (PFT) are noninvasive respiratory tests used to test lung function and health. PFT tests quantify the different dimensions of lung function, i.e., lung volume, airflow, and efficiency of gas exchange, and help in planning effective treatments.

The Pulmonary Function Tests (PFT) play a key role in identifying, treating, and monitoring diseases and disorders like asthma, chronic obstructive pulmonary disease (COPD), and other lung diseases. These tests are most often done when there are symptoms that point towards lung issues like chronic cough, breathlessness, etc., or in the case of abnormal findings on chest X-rays. These are also done as routine check-ups in people with known lung diseases or those who are at increased risk for lung illness because of reasons such as smoking or exposures at work. Also, PFTs are occasionally done prior to major surgeries to determine a patient's lung function and suitability for anesthesia.

For PFT, an individual breathes into a spirometer, which detects the volume and rate of air inhaled and exhaled. PFT tests generally measure airflow (also called spirometry), measurement of lung volumes (to calculate total lung capacity), and diffusion capacity (to test the efficiency of gas exchange). Individuals may have to inhale medication or follow special breathing patterns to provide accurate test results.

Avoid consuming a large meal, alcohol, or smoking before taking these tests since these may impact the lung function. It is also advisable to steer clear of using inhalers or other breathing medications prior to the test unless directed otherwise by the physician. Dress in loose-fitting clothing that allows you to breathe freely during the test procedure. Also, refrain from exercising for 30 minutes prior to the tests.

Interpretation of PFT results requires professional expertise. Therefore, it is essential to consult the doctor to understand the implications of the PFT findings.

Disclaimer: For radiology tests, you need to visit your nearest Tata 1mg partnered lab facility.

What is Pulmonary Function Tests at Center (PFT) used for?

The Pulmonary Function Tests (PFT) is done:

To check lung health if you have symptoms like persistent cough, wheezing, or shortness of breath.
To help diagnose lung conditions like asthma, COPD, or restrictive lung diseases.
If you have a history of smoking or have been exposed to dust, fumes, or chemicals.
Before and after starting treatments or medications that affect the lungs.
To monitor the progress of lung diseases and check if the ongoing treatment is working.

What does Pulmonary Function Tests at Center (PFT) measure?

The Pulmonary Function Tests (PFT) evaluates various aspects of lung performance to assess how well your lungs are working. These tests measure lung volumes, capacities, and flow rates by asking you to breathe into a spirometer or special machine. They gauge how much you breathe in and out, how fast you can blow air out of your mouth, and how well your lungs exchange oxygen into the bloodstream and bring carbon dioxide out. Results assist physicians in the diagnosis and management of respiratory diseases such as asthma, COPD, and other lung diseases, offering essential data for creating effective treatment strategies.

Frequently Asked Questions about Pulmonary Function Tests at Center (PFT)

Q. Are there any risks or side effects associated with pulmonary function tests?

PFTs are safe and noninvasive. Some people may feel a bit lightheaded or short of breath during the test, but this usually goes away quickly.

Q. How often should I have the PFT if I have a lung condition?

The frequency of PFTs depends on your health and treatment plan. Your doctor will decide how often you need this test based on your symptoms and progress.

Q. What conditions can the pulmonary function test help diagnose?

PFT can help diagnose and track conditions like asthma, COPD, pulmonary fibrosis, and other lung disorders.

Q. What does a pulmonary function test (PFT) reveal about my lung health?

It gives detailed information about how your lungs work, how much air they can hold, how fast air moves in and out, and how well gases are exchanged. This helps doctors diagnose problems and see if your treatment is working.

Q. How can I interpret the results of my PFT?

A doctor will compare your results with normal values based on your age, sex, height, and weight. They will explain if your lungs are functioning normally or if there’s a problem.

Q. Can lifestyle changes improve my lung function?

Yes. Quitting smoking, regular exercise, and avoiding polluted air may help your lungs work better. Talk to your doctor for advice suited to your condition.