Prepare a Patient for a CT

General Instructions

Little preparation is needed for a CT scan. Patients are asked to drink plenty of water both before and after the exam, especially if the exam is performed with oral or intravenous contrast. Patients will be asked to remove jewelry and other metallic objects that might interfere with the scan. 

Patient Screening Prior to Administration of Iodinated Contrast

Prior to the administration of iodinated contrast, patients are screened for the following:

• Previous reactions to iodinated contrast media
• All severe allergies and reactions (both medications and food)
• History of diabetes, kidney disease, pheochromocytoma, solitary kidney, kidney or other transplant, or myeloma
• Current use of any metformin-containing medications
• For women of child-bearing age, currently or possibly pregnant or currently breast-feeding.