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→Example: therefore
*60ml × ((0.00723 × 120) + (0.00474 × 176) − 0.341) = 82 ml
The contrast that can be given is thus slightly more than what is needed, and it is therefore acceptable to perform the CT with the estimated dose of IV contrast that is needed. At the same time, the patient had additional risk factors in the form of diabetes and probable anemia, and the low GFR was probably because he was dehydrated from the diarrhea. It is therefore more appropriate to treat this risk factor by rehydrating him before the exam if time allows. In an emergency, the patient may need surgery without a prior CT.
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