About Pulmonary Function Test (PFT / Spirometry)
Pulmonary Function Tests (PFTs), including spirometry, measure how much air your lungs hold and how fast you can breathe out. They are essential for diagnosing and monitoring asthma, COPD and other lung diseases.
The test is simple, non-invasive and takes only a short time.
Also known as: Spirometry, lung function test
Who is it recommended for?
Your doctor may recommend this if you have:
- Breathlessness or wheezing
- Chronic cough
- Monitoring asthma or COPD
- Before surgery
- Occupational lung disease screening
How is it done at AKG Hospital?
- Instructions A technician explains the breathing manoeuvres.
- Breathing tests You breathe forcefully into a mouthpiece.
- Bronchodilator test Testing may be repeated after an inhaler.
- Report The pulmonologist interprets results.
How to prepare
- Avoid smoking for 24 hours
- Ask whether to stop inhalers before the test
- Avoid heavy meals
Recovery & aftercare
No recovery time is needed.
Benefits
- Accurate diagnosis of airway disease
- Tracks response to treatment
- Quick and non-invasive
Risks & when to seek help
Mild dizziness during forceful breathing may occur briefly.
Frequently asked questions
Is PFT painful?
No. It only requires breathing effort.
This page gives general information to help you understand Pulmonary Function Test (PFT / Spirometry). It does not replace a consultation — your doctor will advise what is right for you.

