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→Treating risk factors: +Factors
Risk factors can sometimes be treated or at least mitigated, especially if having suddenly appeared, such as a decreased renal function when it was previously normal. In such cases a common easily treated cause is dehydration.
'''Hydration''' should be done in patients with suspected dehydration(such as recent vomiting, diarrhea and/or diuretic use), and is done by drinking or by intravenous volume expander, either before or after contract administration. It Hydration should be avoided otherwise.<ref group="notes">Hydration of non-dehydrated individuals seems to only increase complication rates, including electrolyte imbalances and cardiac arrhythmias:<br>{{cite journal|last1=Nijssen|first1=Estelle C|last2=Rennenberg|first2=Roger J|last3=Nelemans|first3=Patty J|last4=Essers|first4=Brigitte A|last5=Janssen|first5=Marga M|last6=Vermeeren|first6=Marja A|last7=Ommen|first7=Vincent van|last8=Wildberger|first8=Joachim E|title=Prophylactic hydration to protect renal function from intravascular iodinated contrast material in patients at high risk of contrast-induced nephropathy (AMACING): a prospective, randomised, phase 3, controlled, open-label, non-inferiority trial|journal=The Lancet|volume=389|issue=10076|year=2017|pages=1312–1322|issn=01406736|doi=10.1016/S0140-6736(17)30057-0}}</ref>
===Adjust radiation===
