When working with Pulmonary function test, a set of breathing tests that measure how well the lungs work. Also known as PFT, it helps doctors pinpoint problems like airway obstruction, reduced lung volume, or impaired gas exchange.
One of the most common components is Spirometry, a test that records the amount and speed of air you can inhale and exhale. It’s often called a lung function test and provides the baseline for diagnosing asthma or COPD. Another crucial measure is Diffusing capacity (DLCO), which evaluates how effectively oxygen moves from the lungs into the blood. This gas exchange test spots issues like pulmonary fibrosis or pulmonary hypertension. Finally, many labs include a Bronchodilator response, an assessment of airway changes after a medication is inhaled. Also referenced as reversibility testing, it tells whether airway narrowing is reversible, guiding treatment choices.
These tests together give a full picture: spirometry shows airflow limits, diffusing capacity checks oxygen transfer, and bronchodilator response reveals medication effect. Physicians use the results to classify disease severity, track progression, and decide on interventions like inhalers, steroids, or pulmonary rehab. For athletes, the data can confirm fitness levels, while for smokers it may highlight early damage before symptoms appear. The interpretation often involves comparing values to predicted normals based on age, height, sex, and ethnicity, turning raw numbers into actionable insights.
Understanding what each part of a pulmonary function test does prepares you for the appointment, helps you ask the right questions, and makes the results easier to follow. Below you’ll find articles that break down specific medications, lifestyle tips, and deeper dives into related health topics, giving you a practical toolbox to manage your lung health more confidently.
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