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Spirometry
A Spirometry test (also called a breathing test or a lung function test) checks how much air you can breathe in and out, and how fast you can blow air out. It shows how well your lungs are working by measuring air volume and flow, which appear on a graph. Doctors use spirometry as a screening tool for lung health, but it cannot give a full diagnosis on its own.
What happens during a spirometry test?
- Breathing steps: You wear a nose clip so air only goes through your mouth. You breathe into a mouthpiece, first normally, then take a big breath in to fill your lungs, and blow it out hard and fast to empty.
- Repeat blows: Up to eight blows may be done to get three good results.
- Airway response test: Sometimes you’ll be given a puff from an inhaler (like Ventolin). This shows if medicine helps open your airways and makes breathing easier.
Friendly scientists guide you through each step, so you’ll feel supported and know exactly what to do.
What is spirometry?
Spirometry is a breathing test that measures how much air you can breathe in and out.
Why do I need a spirometry test?
Doctors use it to check for asthma, COPD, or other lung problems.
Does spirometry hurt?
No, it’s safe and painless. You just breathe in and out in different ways.
How long does a spirometry test take?
Usually 15–30 minutes.
Do I need to prepare?
Your doctor may ask you not to use inhalers or certain medicines before the test.
Is spirometry safe for kids?
Yes, children can do spirometry with guidance.
What is the minimum age to book a spirometry at CRS?
Children need to be aged 5 years or older.
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