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Radiographic contrast medium, also known as contrast dye, is a substance that is used in diagnostic imaging procedures to enhance the visibility of certain structures or organs in the body. Contrast dye is typically injected into a vein or administered orally or rectally, depending on the type of imaging study being performed.
Some common diagnostic procedures that may use contrast dye include:
While contrast dye is generally safe, it can cause side effects in some people. Common side effects may include a warm sensation, mild itching or rash, and nausea. More serious side effects, such as an allergic reaction or kidney damage, are rare but can occur. It's important to let your healthcare provider know if you have any allergies or underlying medical conditions before undergoing a procedure that uses contrast dye.