Post-contrast renal function follow-up
No participant reported a decrease in urine output within 48 h after CECT. Only 11 participants (6 in the standard group and 5 in the RPP group) underwent a follow-up serum creatinine test within 1 month (median, 13 days; range, 4–25 days). The mean difference in serum creatinine level from before to after the CT examinations was 0.07 ± 0.09 mg/dL (range, 0.0–0.23) in the standard group and 0.006 ± 0.009 mg/dL (0.0–0.02) in the RPP group (