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Spirometry and methacholine inducement

Spirometry 

This test is given to smokers to determine if they are suffering from lung disease, like asthma or chronic obstructive pulmonary disease (COPD).

How is the test performed?

A specialized pulmonary function technician will explain the procedure to follow.

Are there risks?

No more so than taking a full breath out. If your bronchial tubes are in spasm, you will feel short of breath a little. If you have a habit of losing consciousness when you make any effort, please mention this to our technician.

Precautions to be taken before the test


Metacholine inducement 

This test uses spirometry (blowing into a device) to determine if your bronchial tubes are more sensitive to irritants than a person in good health.

Why have the test?

To determine if your bronchial tubes are more sensitive to an irritant, such as methacholine. This test is used to confirm the impression that a patient suffers from asthma and is also used to quantify the degree of bronchial reactivity: light, moderate, or severe.

How is the test performed?

A pulmonary function technician will explain the procedure to follow. Spirometry is performed before and after breathing stronger doses of methacholine. A person in good health will not be affected; a person suffering from asthma will experience a light bronchial spasm.

Are there any risks?

No more so than when you take a full breath out. If your bronchial tubes are in spasm, you will feel short of breath a little. In this case, a bronchodilator such as Ventolin® pump will generally eliminate these effects. If you have the habit of losing consciousness when you make any effort, please mention it to our technician.

Precautions to be taken before this test