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Spirometry is a simple test which is used to measure the air that each individual can breathe. It is the check-up of the proper functioning of the lungs. It is considered a vital sign like the heart rate, the body temperature, the blood pressure and the respiratory rate.


And other Standards including ISO 26782 (for Spirometry), ISO 23747 (for PEF), ISO 80601-2-61 (for Oximetry), and more

Spirometry, a simple but fundamental test

The subject must inhale deeply and immediately exhale as fast as possible into the mouthpiece of a small instrument, called a spirometer. 

The flow/volume curve = everybody’s digital impression of the lungs
The test results in a particular “sail-like” curve named Flow / Volume curve that plots the velocity of exhalation against the volume of exhaled air. This curve is compared with a theoretical normality curve obtained from the values measured in a population of healthy subjects with equal height, weight, ethnicity, gender and age. Consequently, the flow-volume curve is like a unique “fingerprint” of the lungs for each subject that provides a simple, accurate and highly predictive actual and “future” assessment of our lung function.

The lung age tells us how “aged” the lungs of a subject are

The test also provides simple measurements which, compared with the theoretical normality of a population with the same characteristics, indicate the “lung age” of a subject. The lung age is a way of making the spirometry results more comprehensible, by indicating the “age” level of the lungs in relation to an individual’s age. Put simply, in a healthy subject, the lung age corresponds to the true age. On the other hand, in a person exposed to risk factors or already with lung diseases, the lung age will be that much higher than the true age, the more compromised the lungs are.

MIr are one of the largest manufacturers of Spirometers worldwide     MIR Website

For MIR homecare remote spirometry Solutions  MIR Remote monitoring solutions

For more than 20 years, IAC Ltd has been delivering a high quality Test and Calibration service to primary care providers in Ireland

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