Spirometry is the measurement of the ventilation function of the lungs using an electronic spirometer.
Spirometry is the maximum volume of gas that can be exhaled when we try our best to inhale and then try our best to exhale, which is an important indicator for assessing lung function. The specific operation steps are as follows:
1. First of all, the spirometer will be connected to the power supply, press the power switch, to be the LCD display flashes “8888” several times and then display “0”, indicating that the spirometer has entered the working state.
2. Take the plastic mouthpiece out of the disinfectant, insert it into one end of the air inlet hose, and screw the other end of the air inlet hose into the air inlet of the meter to start using it.
3. The subject holds the lower end of the mouthpiece, take a standing position, first try to inhale deeply to the maximum limit, quickly pinch the nose, and then the mouth close to the mouthpiece, slowly to the instrument to exhale until it can not exhale again. At this time, the value reflected on the display is the value of the tester’s lung capacity. Measure twice in a row and take the maximum value.
Spirometry should be done in a regular hospital using professional equipment.