St Vincent's Clinic Medical Imaging & Nuclear Medicine

Lung Scan

A Lung scan evaluates how your lungs are functioning. It is most commonly performed when looking for blood clots or pulmonary emboli.

What will happen when you have your Lung Scan

There are 2 parts to a Lung Scan:

  1. Part 1. Ventilation You will be required to breathe a gas into your lungs. When enough of the gas is in your lungs a scan will be performed, this scan takes 15minutes.
  2. Part 2. Perfusion You will be given an injection of a 'tracer' into a vein in your arm and another scan will be performed, this scan takes 10minutes.

What you need to do and how to prepare for the test

You will not be required to undress for the scan.  The scan is performed with the Gamma Camera positioned close to your chest but you do not go through a ‘tunnel’.

  • You will need a referral from your doctor
  • You will need an appointment for this test
  • Please inform booking staff if you are or think you could be pregnant or are breastfeeding
  • The procedure will take approximately 60minutes
  • Please brings any previous relevant x-rays or scans to your appointment
  • You can eat and drink as normal before, during and after the test
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