Unverified80% confidenceDecision RuleTime unknown
血氧监测型监护仪（如袜式）需确认采用医疗级反射式血氧传感器，脉搏血氧饱和度精度应在±2%以内，低于此精度的产品夜间误报率显著升高
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Unverified血氧监测精度要求脉搏血氧饱和度误差≤±2%（Masimo或类似医疗级传感器方案），消费级光电传感器在婴儿低灌注和肢体活动状态下误报率显著升高，选购时应查看是否标注SpO2精度范围84% similarUnverified血氧监测精度是核心，选择采用双波长反射式PPG传感器且血氧误差≤±2%的产品，单纯脉搏波估算血氧的低价款在SpO2低于90%时误报率显著上升，失去预警意义84% similarUnverified血氧监测应基于反射式脉搏血氧（reflectance SpO2），采样频率≥1Hz，且需明确标注是否具备心率变异性算法过滤婴儿肢体运动伪影，否则夜间误报率会显著升高83% similarUnverified选择血氧监测类App务必确认硬件采用医疗级PPG传感器且采样率≥100Hz，低于此规格的智能袜/手环在婴儿剧烈翻动时误报率显著升高（>15%），会导致大量夜间惊醒83% similarUnverified婴幼儿血氧监测类可穿戴设备（如袜套式）应选择采样频率≥1Hz且带体动伪差过滤算法的产品，静息状态下血氧读数波动应控制在±2%以内，否则夜间体动会导致大量误报81% similar
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