correlational
Giving NAC before and after a contrast dye scan might help protect the kidneys in people with existing kidney problems, especially if they get a lot of dye — but not all studies agree it works.
Evidence from Studies
No evidence studies found yet.
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.