What are the preparations for pulmonary function test?

The preparations for pulmonary function testing include the following:

1.Diet: Patients should pay attention to a light diet and avoid eating spicy, stimulating, greasy or fried foods that may affect the test results.

2.Rest: Patients need to rest well before the test, avoid staying up late, maintain sufficient sleep, avoid strenuous exercise, and avoid smoking and drinking before the test to avoid affecting the test results.

3.Quitting smoking and drinking: Tobacco and alcohol contain harmful substances that can cause damage to lung tissue. Therefore, patients are advised to quit smoking and drinking before the test.

These preparations can help patients better perform pulmonary function testing to obtain more accurate results.