Unverified85% confidenceDecision RuleTime unknown
袜式/脚环式监测仪采用脉搏血氧（SpO2）传感器，同时测心率和血氧饱和度，血氧≥90%为安全阈值，比单纯心率监测更能提前发现呼吸问题
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85%
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Long-term
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Unverified血氧+心率双参数监测比单纯体动监测更能预警呼吸暂停：选择带SpO2监测且报警阈值可自定义（如血氧<90%触发）的产品，纯靠加速度计判断'翻身/停止呼吸'的产品误报率高、漏报风险大89% similarUnverified居家日常监护首选血氧+心率双参数设备（如袜式/脚环型），SpO2监测精度需达到±2%以内；若需监测呼吸暂停则应额外选带体动/呼吸监测的床垫式或胸贴式设备87% similarUnverified居家慢病血氧监测方案：选医用级±2%精度+PI灌注指数显示+波形图机型，配合固定时段测量（晨起、活动后、睡前）建立基线，SpO2持续低于93%或较基线下降4%以上需就医79% similar
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