This is a test which is generally used to detect clots in the lungs.

How to Prepare?

Please remember to bring your requesting letter and any recent X-rays or CT scans. At the time of your appointment, report to North Shore Radiology and Nuclear Medicine, which is located on the ground floor of North Shore Private Hospital in Westbourne St.

Take all of your usual medications.

There is no need to fast for any part of the lung scan.

What to Expect?

There are 2 parts to this test. During the first part of the test (which takes about 20 minutes) you will breath a radioactive aerosol through special tubing. You will be required to take several deep breaths. Then a series of images is taken using a specialised camera. During the second part of the test (which

takes about 10 minutes) you will be given an injection into a vein (usually near the elbow). Then a further series of images will be taken.

There are no side effects from the gas or injection. The gas will not make you drowsy or sick. The injection does NOT contain iodine and is therefore safe to give to all people even if you have had a previous allergic reaction to contrast injections. Although you will be required to keep still during the scan, the procedure itself is completely painless.

This scan can be done on pregnant women if clinically indicated, however, you must inform the technologist if you are pregnant so the amounts of the materials needed can be adjusted.


You can drive home after the scan.  You will not be drowsy in any way.

In general, the scans and results are sent to your doctor the next working day. Depending on the type of scan you are having (and the clinical urgency), you may be able to take the scan with you in some cases, however there will be a delay while the report is typed.

If you have any questions please phone North Shore Radiology and Nuclear Medicine on 8425 3684. We will be happy to answer any queries that you may have.

Additional Information