A spirometry test may assist in the evaluation and diagnosis of your breathing difficulty. The purpose of this test might include but is not limited to:
· Determining the cause of shortness of breath
· Assessing the effectiveness of certain drugs used in the treatment of breathing disorders
· Determining if your breathing difficulty is obstructive (limiting air flow in the lungs) or restrictive (limiting the volume of the lungs)
· Estimating the extent of known respiratory disease
Prep: NONE
Description: A technician certified or registered in pulmonary testing will conduct your test. Following the technician’s directions, you will blow into a device called a spirometer. The amount of air as well as the speed you breathe out is measured. This test will be repeated three to four times.
The breathing test you will perform is extremely safe. On rare occasions, someone will experience dizziness or lightheadedness after blowing into the testing device. If you are in any way concerned about doing this test, please talk with your doctor.
Other factors that may affect test results:
· Lack of cooperation on your part
· Pregnancy
· Stomach distension
· A poor seal around the mouthpiece or tube
· Recent cigarette or other tobacco use After the test is completed, a preliminary copy of the results will be faxed to your physician. A pulmonologist, a doctor who specializes in breathing problems, will interpret your test, usually within 24 hours. A final report will then be sent to your physician. There are no special instructions after the test. Start taking any medications that were withheld before the test. Return to all your pretest activities.