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What is the preparation for EUS?
Your doctor will want to know about your health status especially if you have any allergies, other significant health problems such as heart disease, lung disease, or diabetes mellitus.You will also be asked about allergies to iodine or shellfish as, under certain circumstances, iodine containing contrast material may be used. If there is a possibility of fine needle aspiration (FNA), the doctor will want to check your blood for proper clotting. It is important to inform your doctor of any family history of bleeding problems or if you are taking medications that interfere with blood clotting (such as Coumadin) or platelet function (such as aspirin, Motrin, ibuprofen, Aleve, and other NSAIDs). The wisest approach is to inform your doctor of any prescription or non-prescription medication you might be taking. Antibiotics are usually not required except in patients with certain heart valve problems.
EUS is performed with sedation so you will not be able to return to work or to drive for 24 hours. It also means that you will need someone to take you home as this is usually an out-patient procedure.
You will need to have an empty stomach, which means no oral intake for 6 or more hours. In case of a rectal EUS, you will probably need to take some enemas or laxatives. In either case, full instructions will be given to you.