What happens if you don’t drink water and urinate right after having contrast dye?

What kind of damage can occur if you don’t drink fluids after contrast dye? And what if you waited an hour or 2 before urinating? If it sits in your body can it cause damage by not getting it out?

submitted by /u/WasabiSea3291
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source https://www.reddit.com/r/Radiology/comments/k1gvys/what_happens_if_you_dont_drink_water_and_urinate/