Precautions to be taken before spirometry
- You can have a light lunch about one hour before the test and should avoid smoking two hours before the test.
- You should not use your pump before the test, because it dilates the bronchi. If you feel too breathless, use your pump and cancel your appointment by telephone.
- If you are pregnant, it is recommended you cancel the test. You can make an appointment after childbirth, even if you are breast-feeding.