Skip to main content

Pulmonary Function Tests

Medically reviewed by Last updated on Apr 2, 2024.

What do I need to know about pulmonary function tests (PFTs)?

PFTs measure how well your lungs work. PFTs may show the cause of breathing problems or how well treatments for a lung condition are working.

How do I prepare for PFTs?

What will happen during PFTs?

What are the risks of PFTs?

Deep breathing done during some tests may cause you to feel short of breath, dizzy, or lightheaded. It may also cause you to cough.

When should I seek immediate care?

When should I call my doctor?

Care Agreement

You have the right to help plan your care. Learn about your health condition and how it may be treated. Discuss treatment options with your healthcare providers to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

© Copyright Merative 2024 Information is for End User's use only and may not be sold, redistributed or otherwise used for commercial purposes.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.