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    Healthline
    https://www.healthline.com › health › pulmonary-ventilation-perfusion-scan

    VQ Scan: Purpose, Preparation, and Expectation

    • Overview
      A pulmonary ventilation/perfusion (or VQ) scan is a series of two lung scans. The scans are either performed together or one after the ot… 展开

    Why is the scan ordered?

    A VQ scan is used most frequently to screen for a pulmonary embolus, which is also known as a blood clot in the lungs. Symptoms of pulmonary embolus may include:… 展开

    Healthline
    Preparing for the test

    Your doctor will explain the procedure of the VQ scan to you, as well as the risks associated with the test. You will be asked to sign a consent form after the possible risks have been … 展开

    Healthline
    What happens during the test

    For the entire scan, which takes about 45 minutes, you’ll be asked to lie down on an examination table. For the perfusion scan, a technician will set up an intravenous line (IV). Radionuclid… 展开

    Healthline
    Lung Perfusion Scan - StatPearls - NCBI Bookshelf
    National Center for Biotechnology Information
    What is a normal pulmonary ventilation and perfusion (V/Q) scan?
    Normal pulmonary ventilation and perfusion (V/Q) scan. The nuclear medicine V/Q scan is useful in the evaluation of pulmonary embolism.
    en.wikipedia.org