Lung Scan

This is a test in which a radioactive material is injected into your blood vessel. Then a scan is made of the chest. This is done with a special x-ray machine that detects the radiation from the material that is injected. The radiation from the material is not a form which is harmful to you and is in a very small dose. When the lung shows it does not have enough blood supply, it is thought that a blockage has occurred and so this test is helpful in detecting a blood clot which has moved to the lungs. There can also be other factors such as pneumonias, tumors or even emphysema which can give abnormal scans.


No preparation or fasting is necessary.


Diffuse and homogeneous uptake of nuclear material by the lungs.

Ranges for normal findings may vary among different laboratories and hospitals. You should always check with your doctor after having lab work or other tests done to discuss the meaning of your test results and whether your values are considered within normal limits.


Your caregiver will go over the test results with you and discuss the importance and meaning of your results, as well as treatment options and the need for additional tests if necessary.


It is your responsibility to obtain your test results. Ask the lab or department performing the test when and how you will get your results.