Unverified75% confidenceTradeoffTime unknown
实时预警功能对脑氧监测才有实际意义（rSO2低于基线20%需干预），而血流速度类居家监测的预警阈值缺乏标准化，若为预警功能付高溢价买血流类家用设备性价比不高
1
Sources
75%
Confidence
Medium-term (~90 days)
Relevance
-
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Unverified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75% similarUnverified居家常规健康监测无需追求医院级连续监测仪，指夹式脉搏血氧仪已满足单次测量需求；仅当有明确慢病管理、术后康复或睡眠障碍诊断需求时才需升级连续监测设备74% 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73% similarUnverified监测精度越高（多通道EEG+呼吸+血氧）通常越接近医疗级，但贴片体积大、耗材贵、佩戴异物感强；日常长期趋势追踪用心率+血氧的轻量贴片即可，无需上多导级设备72% similarUnverified如果只是家中备用、偶尔测一下血氧和脉率，选这款性价比高；如果需要蓝牙记录或连续监测功能，应考虑更高阶型号或智能手表方案71% similar
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