HEALTHCARE PROFESSIONAL SITE
Measuring Lung Function

Your doctor has probably given you a test to measure your forced vital capacity or FVC, which is a measure of how much air your lungs hold. This test is often referred to as a pulmonary or lung function test. FVC is measured using a spirometer. For this, you take your deepest breath, then blow as hard and as long as possible into the spirometer. This is called a spirometry test. Your doctor has a record of your FVC measurements. As IPF gets worse (progresses), FVC decreases.

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