Pulmonary function tests help to monitor and diagnose many forms of lung disease. Preparation for a pulmonary function test is fairly simple and requires minimal effort. Here are some ways to prepare for your test:

• It is best to wear comfortable clothing when you come to the laboratory, particularly if you are scheduled for an exercise study.
• Breathing tests should not be performed on a full stomach.
• If you are a smoker, you should not smoke on the day of the test.
• It is best not to exercise right before you come for testing.