Brush Up on These VQ Scan Basics
Published on Tue Dec 16, 2014
A lung ventilation/perfusion scan, or VQ scan, is a test that helps a pulmonologist measure the airflow (ventilation) and blood flow (perfusion) in the lungs by tracing a small amount of low-risk radioactive substance. The tracer is introduced through inhalation of a radioisotope gas in the ventilation scan, while it is injected into a vein in the patient’s arm in [...]