Test date______________________ Test time__________________
This test will be performed in the Nuclear Medicine section of Radiology in the UW Hospital. From the clinic entrance, go through lobby to 2nd floor atrium elevators, then up to 3rd floor. Follow the signs to Radiology.
What is a V-Q scan?
The ventilation-perfusion scan is a test that studies both airflow and blood flow in the lungs. V-Q refers to airflow and blood flow. The usual purpose of this test is to look for signs of a blood clot in the lungs. This test will take about 1 hour to complete.
You will have an IV placed in your arm. A radioactive substance will be put in the IV that will reflect the blood flow to your lungs. You will also be asked to breathe in a radioactive aerosol. This will help show areas of the lung that may have reduced blood flow. Pictures will be taken of your chest. Your doctor will share the test results with you.
How do I prepare for this test?
Please tell your doctor if you are pregnant. This test should only be performed under special circumstances if you are pregnant. There is nothing else special you need to do to prepare for this test.
How will I feel after the test?
The test is painless, except for the minor discomfort of having an IV placed.
What are the risks?
Many people worry when they hear that the tracers used in this test are slightly radioactive. The amount of tracers used is so small that there are no side effects. Again, it should be noted that this test should only be performed under special circumstances if you are pregnant.
If you have any questions before the test, please call:
UWHC Radiology: Monday-Friday 0800-4:30, (608) 263-XRAY (9729)
Toll free 1-800-323-8942; ask for Radiology.
The information provided should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Any duplication or distribution of the information contained herein is strictly prohibited.
Last Updated: 06/26/2012
Copyright © 10/09/2009 University of Wisconsin Hospitals and Clinics Authority. All rights reserved. Produced by the Department of Nursing. HF#6384
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