While these trace amounts do not cause side effects or health risks for most people, they can interfere with specific medical tests, such as thyroid function studies or radioactive iodine treatments, ...
Medically reviewed by Daniel More, MD A contrast dye allergic reaction can occur after a diagnostic imaging test, such as magnetic resonance imaging (MRI) or computed tomography (CT) scan. Severe ...
Preparation guidelines for a CT scan depend on the type of scan you’re having. If you’re having a bowel scan or a scan with contrast dye, you may need to adjust your diet. Preparation for a CT scan ...