目的：针对休克的儿童，探讨应用肾阻力指数(RRI)联合尿氧分压(UPO₂)的检测预测休克患儿发生急性肾损伤(AKI)的可行性及有效性。方法:选择我院2021年10月至2022年10月收治的初步诊断为休克的178例患儿为研究对象，应用便携式超声机测量患儿RRI，收集尿液标本检测UPO₂。依据其是否发生AKI将患儿分为两组，应用Logistic回归分析相关危险因素，应用受试者工作特征(ROC)曲线分析RRI、UPO₂对AKI发生的预测价值。结果：本次研究共收集178例患儿的临床资料，结果显示，RRI、UPO₂是休克患儿发生AKI的独立危险因素。联合应用RRI和UPO₂预测休克患儿发生AKI的ROC曲线下面积(AUC)为0.843(95%CI 0.697~0.819)，约登指数最大值为0.653。当以RRI为0.75、UPO₂为51.3 mmHg为最佳临界点预测休克患儿发生AKI的敏感度为75.8%，特异度为83.7%。结论：超声测量RRI联合检测UPO₂，能够较好地预测休克患儿AKI的发生，作为一种便捷、无创的诊查手段，方便应用于实际临床工作，指导预防或早期干预，具有一定的应用价值。

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