Stephen J. Schueler, M.D.

Infection of the Bronchial Tubes Chronic Pulmonary Function Test

An evaluation of chronic bronchitis will often include pulmonary function testing.

Pulmonary Function Testing
Pulmonary function tests include a variety of special lung tests. They are also called PFTs or spirometry. PFTs measure the movement of air in and out of the lungs. Using these test results, a doctor can assess a person's overall lung function.

PFTs are also used to document the progression or extent of certain lung diseases. They can show a therapeutic response to a medication or treatment. PFTs can evaluate a patient's lungs prior to surgery and monitor workers exposed to substances that are toxic to the lungs.

In this test, the patient breathes into a mouthpiece. The PFT machine measures the amount of air inhaled or exhaled in a fixed period of time. The maximum speed of breathing out is measured. This is called Peak Expiratory Flow or, PEF. Oxygen saturations are usually measured along with PFTs. A simple version of this test is available as a personal peak flow meter.

Continue to Infection of the Bronchial Tubes Chronic Similar Conditions

Last Updated: Dec 7, 2010 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed Infection of the Bronchial Tubes Chronic References
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