Answer: Ideally about 5 days
If multiple studies are needed, ideally 5 days should be kept between the studies to allow the kidneys to recover fully from the contrast.
Other steps should be taken like
- all nephrotoxic drugs should be discontinued,
- the minimal amount of contrast material should be used,
- nonionic agents should be preferred,
- patients should be well hydrated 12 hours before and 2 hours after a contrast-enhanced study.