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Asthma

Pulmonary Tests and Procedures

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Pulmonary Tests and Procedures

Peak Flow Meter
Peak Flow Meter A peak flow meter for asthma is like a thermometer for a fever - it helps you monitor what's going on inside your lungs by measuring airflow out of the lungs. The meter can tell you if your airways are narrowing well before asthma symptoms begin. Learn how to use a peak flow meter, how to find your "personal best," and how to set your peak flow zones.
Fast Facts
One question your health care provider may ask when diagnosing asthma is whether you cough a lot, particularly at night.
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Pulse Oximetry
Pulse Oximetry What is pulse oximetry? Pulse oximetry is a test used to measure the oxygen level (oxygen saturation) of the blood. It is an easy, painless measure of how well oxygen is being sent to parts of your body furthest from your heart, such as the arms and legs. A clip-like device called a probe is placed on a body part, such as a finger or ear lobe. The probe uses light to measure how much oxygen is in the blood. This information helps the healthcare provider decide if a person needs extra oxyg...
Pulmonary Function Tests
Pulmonary Function Tests 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 2 types of disorders that cause problems with air moving in and out of the lungs: Obstructive. This is when air has trouble flowing out of the lungs due to...
Peak Flow Measurement
Peak Flow Measurement What is peak flow measurement? Peak flow measurement is a quick test to measure air flowing in and out of the lungs. The measurement is called the peak expiratory flow rate (PEFR). It’s also known as the peak expiratory flow (PEF). Peak flow measurement is mostly done by people who have asthma. Peak flow measurement can show: The amount of air breathed in The amount of air breathed out The rate at which the air is breathed in and out from the lungs During the test, you blow forcefu...
Bronchodilator Reversibility Testing
Bronchodilator Reversibility Testing What is a bronchodilator reversibility test? The bronchodilator reversibility test is used to determine how well your lungs are working. This test uses a spirometer and a bronchodilator. A spirometer is a machine that measures lung function. It measures how much and how fast air is blown out or exhaled. Bronchodilators are medications that open the airways, making it easier to breathe. Person breathing into a spirometer. Why might I need a bronchodilator reversibilit...