Pulmonary function tests are non-invasive tests that show how well the lungs are working. The tests measure lung volume, capacity and rates of flow. This information can help your healthcare provider diagnose and decide the treatment of certain lung disorders.
There are 2 types of disorders that cause problems with air moving in and out of the lungs:
- ObstructiveThis is when air has trouble flowing out of the lungs due to airway resistance. This causes a decreased flow of air.
- RestrictiveThis is when the lung tissue and/or chest muscles can’t expand enough.
Speciality – Lung function
How do I get ready for pulmonary function tests?
Your doctor will explain the procedure to you. Ask her any questions you have. Tell your doctor if you take any medicines.
Make sure to:
- Stop taking certain medicines before the procedure, as instructed by your healthcare provider.
- Stop smoking before the test, as instructed by your healthcare provider. Ask your provider how many hours before the test you should stop smoking.
- Not eat a heavy meal before the test, as instructed by your healthcare provider.
- Follow any other instructions your healthcare provider gives you.
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