What is a Spirometer?
A spirometer is a simple medical device used to measure lung function by recording how much air a person can breathe out strongly and how fast they can breathe out. It measures lung volumes such as forced vital capacity (FVC), forced expiratory volume in 1 second (FEV1), peak expiratory flow (PEF), and ratios such as FEV1/FVC. Spirometry gives a physician important...
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