NM Lung Scan (VQ)

Overview-
This test is done to evaluate air distribution and blood flow within the lungs. It is used to diagnose pulmonary embolus in patients with shortness of breath or chest pain.

Preparation-
You will need a recent chest x-ray unless you have had one 24 hours prior to the lung scan.

Length of exam-
60 minutes

How is the exam performed?
A lung scan is done in 2 parts. First you will breath in a radioactive aerosol for approximately 10 minutes. You will be lying on your back and the camera will move around your chest and take 8 different images of your lungs. Then, the technologist will give you an injection in the vein of your arm and the camera will move around your chest and take the same 8 pictures.

Results-
Please contact your physician for the results of your test. The results will be available within a couple of days.

This page is intended for education purposes only. This should not replace medical advice from your physician. Please call your physician if you have medical questions concerning your health. For any questions about the procedure, please contact the radiology department.