Most of the time, we don't pay much attention to things like shortness of breath and coughing, right? But sometimes these can be signs that something is wrong with our lungs. So, today we are going to talk about a very important test that is done to find out exactly how well your lungs are working and how strong they are. That is called spirometry . This is actually a very simple test, and it also provides a lot of information.
What is Spirometry? Let's understand it simply!
Simply put, spirometry is a test that measures the function of your lungs, or a pulmonary function test . It can mainly check several things.
- How fast air moves in and out of your lungs when you breathe in and out.
- How much air your lungs can hold.
- How strong your lungs are and how well they do their job of breathing.
This information is very important for doctors to assess the health of your lungs. Also, this is a very safe test . So there is nothing to be afraid of.
Why do we need to have a spirometry test?
This test is primarily done to see if your lungs are working as expected. In addition, it can help diagnose and manage a number of lung and respiratory diseases. Here are a few examples:
- Asthma
- Chronic Obstructive Pulmonary Disease (COPD)
- Cystic Fibrosis
- Pulmonary Fibrosis
In addition to diagnosing these diseases, spirometry testing has several other benefits:
- You can measure your lung capacity .
- It is possible to observe whether and how changes occur due to long-standing lung diseases.
- This helps identify changes in lung function at an early stage and sometimes even helps plan treatment.
- You can tell if there is any narrowing anywhere in the airway.
- It helps determine how effective medications, such as inhalers, will be for your symptoms.
- You can see if your lung function has been affected by exposure to certain substances.
- It is also used to assess the risk of respiratory complications before surgery .
What symptoms would prompt you to have a spirometry test?
Your doctor may recommend this test if you have any symptoms or problems with your lungs or respiratory tract. Here are some of the most common symptoms:
- If you feel tightness, pain, or pressure in your chest.
- Cough , especially if there is a cough with mucus.
- If it is difficult to breathe deeply.
- Difficulty breathing (Dyspnea) or feeling short of breath.
- If you make a wheezing sound when breathing.
If you have symptoms like these, it is best to seek medical advice without ignoring them.
Who performs this spirometry test?
This test is usually performed by a respiratory therapist , nurse, your family doctor (GP - General Practitioner), or a lung specialist (Pulmonologist), who are well-trained in this.
Is a device called a spirometer good for our lungs?
There may be a slight misunderstanding here. A spirometer is a medical device that measures your breathing pattern and the amount of air you can breathe. Rather than directly "doing good" for your lungs, it helps your doctor to accurately diagnose whether there is a problem with your lungs. Based on that diagnosis, you can be given the necessary treatment.
How does this spirometry test work?
Spirometry is a test that uses a machine called a spirometer . In this test, you wear a mouthpiece that you blow air into. This mouthpiece is connected to a computerized machine. This machine measures and records the amount and type of air you breathe in and out of.
How should we prepare before a spirometry test?
To get the most accurate results from this test, your doctor may give you some tips like:
- You may be asked to temporarily stop taking any medication for breathing difficulties (this should be done as directed by your doctor).
- They say to come wearing loose, comfortable clothing that doesn't constrict the chest.
- They say not to eat a large meal at least two hours before the test.
- Avoid strenuous exercise for at least 30 minutes before the test.
When these things are followed properly, the accuracy of the test results increases.
How is a spirometry test performed?
The doctor can perform this test in his office or in a special lung-function laboratory.
First, a soft clip is placed on your nose . This is done to help you breathe in and out only through the mouthpiece attached to the spirometer, instead of breathing through your nose.
Then, you are told to take a deep breath and blow as fast and hard as you can through the mouthpiece into the spirometer. The machine measures how much air you exhale and how much air you breathe back in.
The test is repeated at least three times in this way to ensure that the results are accurate and reproducible.
Sometimes, your doctor may give you medicine that helps open your airways and then test you again with a spirometer. The results are then compared before and after the medicine is given. The doctor will then decide whether to add that medicine to your treatment plan.
Is this spirometry test painful?
No, the spirometry test is not painful at all .
However, you may feel a little dizzy, lightheaded, or tired as you take deep breaths and exhale quickly. You may also cough when you blow air into the spirometer. These symptoms will go away after a while after the test. If you need to rest during the test, tell the medical staff.
Another thing is that your heart rate may increase slightly during spirometry. If you have had a heart attack before, or if you have any other heart-related conditions, you should definitely inform your doctor beforehand .
How long does a spirometry test take?
It can vary depending on the type of spirometry your doctor orders, but it usually takes between 15 and 30 minutes to complete this test.
What happens after the test?
After the test is over, you can resume any medications your doctor told you to stop. You can also resume your normal activities and exercise.
The doctor will also tell you when you will receive your test results.
In some cases, spirometry may be followed by lung volume and diffusion capacity tests. These measure the amount of air your lungs can hold and the ability of your lungs to absorb oxygen into your blood. These tests, in addition to spirometry results, can help your doctor diagnose certain lung diseases. Your doctor may also order these tests periodically to see how well you are breathing.
What is a "normal" value on a spirometer?
What is considered a "normal" value from a spirometer depends on several factors, such as your age, gender, height, and ethnicity . Your doctor will use these characteristics to determine what the normal value is for you.
Spirometry mainly measures two things:
- Forced Vital Capacity (FVC): This is the maximum amount of air you can breathe in deeply and exhale as quickly and completely as possible.
- Forced Expiratory Volume in 1 second (FEV1): This is the amount of air you exhale in the first second.
After you take the test, your doctor will compare your results with the normal range for your age group and other characteristics. A normal range is considered to be 80% or higher of the normal range .
Based on your results, your doctor can also get an idea of what kind of condition is affecting your lungs. For example:
- Obstructive lung disease: This is when your lungs or airways are damaged, making it difficult to breathe out all the air in your lungs. This can be caused by conditions such as asthma, bronchiectasis, COPD, and cystic fibrosis .
- Restrictive lung disease: This is when you are unable to fully expand your lungs. This can be caused by conditions such as amyotrophic lateral sclerosis (ALS), interstitial lung disease, muscular dystrophy, sarcoidosis, and scoliosis .
When will we know the results of the spirometry?
You won't get your results right away after the test. A specialist will first review your test results . Then, the specialist will discuss your results with the doctor who ordered the test.
You will usually know the results within a few days .
How do these results help the doctor?
The results of a spirometry test can help your doctor determine things like:
- Are your symptoms caused by asthma or another medical condition?
- Is there any blockage or narrowing anywhere in your airways?
- How successful is the treatment you are receiving ?
- Is your lung volume lower than normal, and if so, do you need further tests?
- If there is a lung disease, is it stable or getting worse ?
- How severe is the disease?
When should we see the doctor?
Your doctor will contact you to discuss your results within a few days of the spirometry test. If you have not heard back from your doctor within a few days, call your doctor and ask about it.
If you have a chronic lung disease , you may need to have lung function tests done about once a year.
The most important thing is, if you notice any changes or abnormalities in your breathing pattern or respiratory system, don't ignore it. It may not be anything serious, or it may be a symptom of a lung disease.
Your doctor can use tests like spirometry to find out what's causing it. Remember, spirometry is not a painful test. With an accurate diagnosis, you and your doctor can create a health plan to improve your quality of life.
Final Take-Home Message
So, spirometry is not a test to be afraid of , but one that provides a lot of valuable information about the health of your lungs.
- If you have symptoms such as difficulty breathing or a persistent cough, seek medical advice.
- If your doctor recommends spirometry, don't hesitate to get it done.
- This test can tell you a lot about how well your lungs are working, whether you have any medical conditions, and how successful your treatment is.
- Early detection of diseases is a big step towards a healthy life!
Take care of your lungs. Because healthy breathing means healthy life!
` Spirometry, Spirometry, lung test, breathing difficulties, asthma, COPD, lung disease, lung function test
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