You may experience mild symptoms, such as a feeling of warmth, a headache, a metallic taste and nausea or vomiting, from injection of dye. Fluoroscopic images made by X-ray equipment are taken after dye injection. The computer converts images into digital information, then subtracts bone and soft-tissue images made before and after injection of dye. This allows a better study compared to ordinary X-ray or fluoroscopic exams. You may be asked to wait a short while until X-ray films are developed.
Dye acts as a diuretic.
Drink plenty of liquids over the next 24 hours. Extra fluid intake speeds excretion of dye. Activity after test Watch the site where dye was injected for signs of redness or swelling. If bleeding occurs, apply firm pressure. If swelling or a bruise containing clotted blood appear at the injection site, apply ice packs.