Jefferson
Medical
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Pulmonary Function Tests Pulmonary Function Tests (PFT) measure how efficiently an individual's lungs perform their essential tasks. Several separate techniques are used to determine the amount of air the lungs can hold, how well the lungs move air into and out of the body, and how effectively the lungs exchange oxygen and carbon dioxide. There are 3 primary phases of pulmonary function testing:
However, there are variations on these tests that also can provide physicians with insights into lung disorders. All of these tests provide measures of various lung functions, including tidal volume, carbon monoxide response, total lung capacity and many more. With this information, physicians can accurately diagnose both the nature of a lung disorder and its severity.
This test is performed at Jefferson Medical on Mondays, Tuesdays, and Wednesdays. It takes approximately 45 minutes to take the test. If you are scheduled for a pulmonary function test, please do not take your bronchodilator (breathing medicine) 4 hours before the test unless absolutely necessary. An arterial blood gas (ABG) study is a diagnostic test that measures the levels of certain gases traveling in the blood. These gases include oxygen and carbon dioxide. Because the test requires oxygen-rich blood, the blood sample must be taken from an artery rather than a vein.
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