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One common test that requires injecting a patient with a radioactive substance is a positron emission tomography (PET) scan. During this procedure, a radioactive tracer is injected into the patient's body, which emits positrons that are detected by the scanner to create detailed images of metabolic activity in tissues and organs. This technique is often used in oncology, cardiology, and neurology to diagnose and monitor various conditions.

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3w ago

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