At the lab, you will be required to sit in a Plexiglas booth where you will be instructed to frequently blow into special equipment while a technician takes various measurements of your lung capacity. To prevent breathing through your nose, you will be given a pair of nose clips to use. There are four tests in total and the whole procedure takes about 45-60 minutes.
For one of the tests, you will be asked to use an inhaler through which the technician will give you albuterol (Ventolin®). Ventolin is a bronchodilator often used by patients with asthma or bronchitis. It helps to “open up” the air passages in the lungs making it easier for air to flow through.
There are very few side effects to Ventolin. However, let the technician know if you have a pre-existing heart condition, are taking heart medications or you are already on bronchodilators/inhalers.