Pulmonary Function Testing
Chest diseases clinic
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8AM to 8PM

What are pulmonary function tests?

Pulmonary function tests (PFTs) are non-invasive tests that show how well the lungs are working. The tests measure lung volume, capacity, rates of flow, and gas exchange. This information can help your healthcare provider diagnose and decide the treatment of certain lung disorders.

There are two types of disorders that cause problems with air moving in and out of the lungs:


This is when air has trouble flowing out of the lungs due to airway resistance. This causes a decreased flow of air.


This is when the lung tissue and chest muscles can’t expand enough. This creates problems with airflow, mostly due to lower lung volumes.

PFT is usually done with two methods.

These two methods may be used together and perform different tests, depending on the information that we are looking for:


A spirometer is a device with a mouthpiece hooked up to a small electronic machine.


You sit or stand inside an air-tight box that looks like a short, square telephone booth to do the tests.


At klinic Healthways, our team will ensure to provide you with the best pulmonary function testing services from our expert doctors. You can call us or visit our website to book your services conveniently. Our expert doctors can also guide you by providing the best assistance over the call. 

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