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Your doctor will explain if they would like to order some tests.
These might include:
  1. Blood tests – to check your blood levels, immune system and how your organs are working.
  2. Images of the chest or body – see below for different types of scans that may be requested.
  3. Lung function tests – also known as ‘Spirometry‘ – see below for a video of how this is performed.
  4. A heart scan – also known as an ‘Echocardiogram‘ – a scan to see how well the heart is pumping.
  5. A sputum sample – you will be asked to cough up sputum (phlegm) and this will be sent to the lab to see if there are any ‘bugs’ in it.
  6. Other specialist tests – there are lots more tests that doctors may arrange which aren’t covered here. Your doctor will explain if you need a different type of test.

Remember it’s your right to know how and why a test is being done. If you have any questions or concerns then don’t be afraid of talking to your doctor.

Images of the chest

Different scans are requested because they show different parts of the body. Your scan technician will explain how each test is performed. You must always tell your doctor is you are pregnant, breastfeeding or if you have any allergies.

Chest X-Ray

Getting a chest X-ray is painless and quick. An X-ray technician will position you in front of the X-ray machine and may ask you to change positions so that multiple images can be taken, allowing your doctor to view your chest from the front, back or side. You’ll be asked to hold your breath for a few seconds while the image is being taken, because this allows for a clearer picture of your heart and lungs.

CT scan

This creates a '3D' image of your lungs. You'll lie down on the table while the donut-shaped machine moves around you, collecting images. A CT scan typically takes about 20 minutes. You may be given an injection just before the scan which will help highlight different parts of the lungs.

Ventilation/ Perfusion Scan (VQ scan)

This is actually two scans in one - the first part measures the airflow (ventilation) and the second part looks at the blood flow (perfusion) to the lungs. It is especially useful when looking for blood clots in the lung. This test usually lasts around 45 minutes.

Lung Function Tests - 'Spirometry'

Watch this video which explains how and why lung function tests are performed (used with permission from SAWBO animations)

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