Spirometry
Spirometry helps to objectively check lung capacity and assess the flow of air in various phases of the respiratory cycle.
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Spirometry
Spirometry (spirometric examination) provides an objective assessment of lung function. With it, respiratory diseases can be diagnosed early and appropriate treatment can be started. It is performed to determine predispositions for occupations in which lung function plays an important role.
Spirometry is performed in both adults and children. However, it should be noted that it may not be possible to perform the test in younger patients due to difficulties in following and understanding instructions.
What does spirometry involve?
Spirometry involves checking the volume of air exhaled from the lungs and inhaled into the lungs and measuring the rate of airflow through the airways at various phases of the respiratory cycle. The examination involves measuring the maximum amount of air a patient can take in and out of their lungs.
The examination takes just a few minutes. It is painless and non-invasive. During the examination, patients take a seat or keep a standing position. They should not hunch over. The patient breathes through a disposable plastic mouthpiece, which should be tightly held with the mouth. Breathing through the nose is prevented by tightening the plastic clip.
The examination involves taking several calm inhalations and exhalations, and then, at a signal given by the nurse, taking in the maximum amount of air into the lungs and releasing it by exhaling as quickly and as long as possible. For readability and reliability of the results, this action is repeated several times. During the examination, the patient is instructed on the required depth and rate of inhalation and exhalation.
When is spirometry performed?
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The spirometry test is performed in patients with:
The examination may also be ordered for the patients with:
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Usually, a baseline spirometry is performed, and sometimes also a spirometry after inhalation of a bronchodilator drug (the so-called diastolic test).