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    Lung Nuclear Medicine Scan

    h9991218.jpg

    Courtesy of Intermountain Medical Imaging, Boise, Idaho.

    A lung scan is a test that uses a radioactive tracer to look at the lungs. Areas of the lung that retain too much air show up as bright or "hot" spots on the pictures. Areas that are not receiving enough air show up as dark or "cold" spots.

    Figure 1 shows normal blood flow in healthy lungs. Figure 2 shows dark areas where blood clots (pulmonary emboli) are preventing normal blood flow through the lungs.

    ByHealthwise Staff
    Primary Medical ReviewerAnne C. Poinier, MD - Internal Medicine
    Specialist Medical ReviewerMyo Min Han, MD - Nuclear Medicine

    Current as ofSeptember 9, 2014

    WebMD Medical Reference from Healthwise

    Last Updated: September 09, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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