Iodine is the usual contrast dye. Some patients are allergic to iodine and may have a reaction, including hives, itching, nausea, breathing difficulty, or other symptoms.
As with any x-ray examination, radiation is potentially harmful. Consult your health care provider about the risks if multiple CT scans are needed over a period of time.
Pregnant or breast-feeding women should consult their health care provider about the risk to the fetus.
Review Date: 11/3/2004
Reviewed By: Jeffrey J. Brown, MD FACR, Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO. Review provided by VeriMed Healthcare Network.
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