What Are Pulmonary Function Test Results?
A pulmonary function test measures how well your lungs are working. The test measures the volume of air you inhale and exhale, the length of time it takes for you to exhale, and the amount of oxygen in your blood. Pulmonary function test results help to diagnose and monitor conditions affecting the lungs, such as asthma, chronic obstructive pulmonary disease (COPD), and other breathing disorders.
What Do Pulmonary Function Test Results Show?
Pulmonary function test results show how well your lungs are working based on the measurements taken during the test. Your results will compare to the results of people of the same age, gender, and ethnicity. The results are usually expressed as a percentage of the normal range or as a ratio of how much air you can inhale or exhale compared to the average person.
What Do Abnormal Pulmonary Function Test Results Mean?
Abnormal pulmonary function test results could be a sign of a lung disorder. The results can help to diagnose and monitor conditions such as asthma, COPD, and other breathing disorders. Your doctor may order additional tests or refer you to a specialist for further evaluation.
What Are the Different Types of Pulmonary Function Tests?
There are several different types of pulmonary function tests. These tests measure different aspects of your lung function, such as the volume of air you inhale and exhale, the length of time it takes for you to exhale, and the amount of oxygen in your blood. Common pulmonary function tests include spirometry, body plethysmography, diffusion capacity, and lung volume measurements.
What Are the Risks of Pulmonary Function Tests?
Pulmonary function tests are generally safe, but they can cause shortness of breath and dizziness in some people. Talk to your doctor about any concerns you may have before the test.
How Are Pulmonary Function Tests Performed?
Pulmonary function tests are performed by a trained technician in a laboratory or clinic. During the test, you will be asked to sit or stand and breathe into a mouthpiece connected to a machine. The machine will measure the volume of air you inhale and exhale, the length of time it takes for you to exhale, and the amount of oxygen in your blood.
How Should I Prepare for a Pulmonary Function Test?
You should talk to your doctor before the test to discuss any medications you are taking, as some medications can interfere with test results. You should also avoid eating or drinking caffeinated beverages for two hours before the test.
What Should I Do After the Test?
Your doctor will interpret your test results and discuss any follow-up care that may be necessary. If you have any questions or concerns, talk to your doctor.