Objective  To investigate the optimized washing speed of continuous bladder irrigation.

  Methods  From February to May 2020, 79 patients with transurethral resection of prostate (TURP) were selected as control group, and 81 patients with TURP from June to August 2020 were selected as experimental group. The control group adjusted the speed of continuous bladder irrigation according to the traditional method, and the experimental group was irrigated according to the best speed of bladder irrigation discussed in this study. Occurrence of urinary duct blockage, bladder spasm, and irrigation time were compared, and nurses' cognition on bladder irrigation and drainage fluid before and after training was analyzed between the two groups.

  Results  After training, the accuracy rates of color description, blood loss estimation, nursing record as well as filling and washing speed adjustment of drainage fluid by bladder irrigation of 20 nurses were higher than those before the training (P < 0.05). The incidence rates of urinary blockage and bladder spasm in the experimental group were lower than those in the control group, and the irrigation time was shorter than that in the control group (P < 0.05).

  Conclusion  The self-made colorimetric card of drainage fluid by bladder irrigation used in this study, and the optimal washing speed of specific color determined through clinical tests can improve the effect of continuous bladder irrigation, reduce incidence rates of urinary blockage and bladder spasm, and shorten the flushing time, which is beneficial to the patients' recovery and reduction of workload of nurses.