What is a spirometer? What is spirometry?

Modified on Tue, 15 Nov, 2022 at 7:36 PM

Spirometry is a common type of breathing test. This test measures how much air you can breathe in and out of your lungs, as well as how easily and fast you can the blow the air out of your lungs. A spirometer is a device used to measure different breathing parameters including Force Vital Capacity – (FVC) and Forced Expiratory Volume in 1 second (FEV1).

FVC - This is the largest amount of air that you can forcefully exhale after breathing in as deeply as you can. A lower-than-normal FVC reading indicates restricted breathing (Mayo Clinic).

FEV1 – This is how much air you can force from your lungs in one second. This reading helps your doctor assess the severity of your breathing problems. Lower FEV-1 readings indicate more significant obstruction (Mayo Clinic).

Over a prolonged period, spirometry can help track the progression of chronic respiratory illnesses and enable doctors to pinpoint the best course of action for their patients.


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