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Agents such as barium sulfate and iodine, which can be administered orally, rectally, intravenously, or in an artery to enhance the real-time imaging of dynamic processes in blood vessels, or peristalsis in the gi tract are called ______________________________ agents.

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Radiocontrast agents are substances such as barium sulfate and iodine administered to a patient to improve the real time imaging of dynamic processes in blood vessels, or peristalsis in the gastro intestinal tract. These agents work by absorbing external X-rays that cause low exposure on the X-ray detector.






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