You may also need to have PFTs done before or after surgery.
Spirometry Testing
Spirometry is the most common PFT.
This, the spirometer, immediately reads the volume of air that you exhale with each breath.
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Oxygen and carbon dioxide normally diffuse (flow) through your alveoli and alveolar capillaries.
Whilecarbon monoxide is a dangerous gas, this test is completely safe because it only involves a small amount.
Lung Plethysmography
A lung plethysmography test is used to measure how much air your lungs can hold.
Lung plethysmography is especially helpful in helping your medical team distinguish betweenobstructive and restrictive lung diseases.
Restrictive lung diseases prevent you from inhaling adequately, while obstructive lung diseases prevent you from exhaling adequately.
Furthermore, they pose no safety concerns.
These tests may be measured twice in one clinic visit.
For example, you might have your spirometry test before and after you use abronchodilator.
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