Timal R. et al. JAMA Intern Med. Published online February 17, 2020. doi:10.1001/jamainternmed.2019.7428
"Conclusions and Relevance:
Among patients with stage 3 CKD undergoing contrast-enhanced computed tomography, withholding prehydration did not compromise patient safety. The findings of this study support the option of not giving prehydration as a safe and cost-efficient measure."