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How It's Done

A radionuclide scan usually is done as an outpatient test, either in a special test facility or in a hospital. When you arrive for your test, you either will swallow the tracer, or it will be injected into one of your veins, usually in your arm. Because it takes several hours for the tracer to travel to its target organ, the test center may allow you to leave for a while, and return later. When you return, you will be asked to lie in various positions on a table, while the gamma camera scans your body. After the procedure you can resume your normal activities.

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