SPIROMETRY is a test used to assess your lung function by measuring how much air you inhale and how much and how fast you exhale. The test is performed by forced breathing in a mouth piece connected to a spirometer and is repeated 2-3 times.
THE TOTAL LUNG CAPACITY – TLC is a measure of the total volume of air that your lungs can contain. The test is used to differentiate between restrictive and obstructive (e.g. asthma and COPD) lung disease.
THE DIFFUSION CAPACITY – DCO is a measure of the ability of the lung tissue to transport oxygen from inhaled air to the red blood cells in the pulmonary capillaries. It is an overall measurement of the function level of the lung tissue.
FORCED OSCILLATION TECHNIQUE – FOT uses sound waves to determine your lung function. During the test, you breathe normally in a mouth piece while sound waves are passed into your lungs. The test gives information about the mechanical properties of your airways and lung tissue.
All four tests are fast, save and non-invasive and are key tools in pulmonary diagnostics.