Understanding Lung Function Tests with the Help of a Spirometer
A spirometer is a simple medical device used to measure lung function by determining how much air a person can inhale and exhale. Spirometer testing, also called pulmonary function testing (PFT), is a common, painless test used by doctors to screen for and diagnose lung diseases as well as monitor how well lungs are working over time. The results of spirometer tests can help detect respiratory problems early and determine how severe they may be.
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