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Everything you need to know about Computed Tomography (CT)
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IV Contrast

questionWhy do we use IV contrast material?
questionDo you use serum creatinine levels or GFR in your practice for establishing risk prior to CT scanning?
questionWhat is GFR and why is it a more accurate measure than simply getting a creatinine level?
questionWhy are GFR numbers different for Caucasians and African Americans?
questionAre all CT scans with IV contrast done the same way?
questionWhat type of IV contrast material do we use and why?
questionAt what temperature do we store IV contrast material?
questionWhy do you warm IV contrast?
questionWhat is the advantage of Visipaque as written in the literature?
questionWhen do you use Visipaque-320 and when Omnipaque-350?
questionDoes the concentration of contrast mean that higher concentrations are better (AKA-isn’t a higher number better)?
questionWhat is the volume of IV contrast material we use?
questionWhat patients are considered high risk patients for IV contrast for CIN?
questionDo we have set cutoffs for creatinine levels and if so what are they?
questionCan we pretreat patients who have borderline renal function? If yes then how?
questionShould patients be NPO for CT scanning? If yes for how long?
questionWhat are the common volumes of contrast used for IV injection?
questionWhat kind of IV access is ideal for use for IV contrast injection?
questionHas there been any new developments in technology that may help us high injection rates in patients who can not tolerate an 18g needle (or at times even a 20g)?
questionCan any IV the patient has in place be used to inject the contrast material?
questionCan we use a central line or a PICC line for injection?
questionWhat about the new “purple PICC/central lines” I hear about?
questionWhat are some of the common normal “side effects” of IV contrast agents?
questionIs there a relationship between patients receiving chemotherapy and CIN?
questionIs it ok for patients to have both an MR and a CT with contrast on the same day?
questionHave you ever seen a patient develop diffuse erythema distal to the IV injection site in the absence of extravasation?
questionPatients often report a metallic taste in their mouth following use of IV iodinated contrast. Is there an explanation?
questionAre there any contrast volume limitations for the use of IV contrast?
questionCan you tell me a bit more about GFR and what it really means?