During the Test
- Pulmonary function tests are done in thePulmonary Function Laboratory.
- The technician will give you specific instructions for each of the tests. For
example, you may be asked to breathe in as deeply as you can and then blow air out
as fast as you can. You also may be asked to breathe normally, and then take in as big
a breath as you can and to hold your breath for several seconds. You will repeat the test several times. Accurate measurements depend on you following the instructions and giving your best effort.
- A nose clip will be put on your nose so that you breathe through your mouth during the test. If air escapes through your nose, incorrect measurements may occur.
- You may be given a medicine to inhale. Some tests will then be repeated to see the effect or benefit of the medicine.
- The breathing exercises may make you tired or short of breath. You will be given rest periods during the test if you need them.
- The doctor also may take a blood sample to check the amount of oxygen, carbon dioxide or hemoglobin in your blood.
After the Test
- The results of the test are reported to your doctor. Your doctor will discuss the test results with you.
- There are no side effects from these tests. You may feel tired and want to rest after the test is over.
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