Unverified85% confidenceCautionTime unknown
腕式便携但极其依赖姿势——手腕必须与心脏保持同一高度，测量时若手臂悬空或过低，误差显著；给不熟悉操作规范的老人用腕式，读数常年不准
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85%
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Long-term
Relevance
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Unverified腕式便携但对测量姿势极敏感（手腕需与心脏同高），越便携越易因姿势误差导致读数不准，追求准确性时便携性要让步于上臂式88% similarUnverified测量时需将手腕抬至心脏高度并保持静止，姿势要求严格，对行动不便或认知退化的高龄老人来说独立操作有一定门槛83% similarUnverified上臂式设计相比腕式更不易受测量姿势影响，适合老年人或不熟悉正确测量姿势的用户82% similarUnverified手腕纤细或有关节炎的老人优选颈挂式而非腕戴式，腕戴款按键小且需另一只手操作，突发状况下（如中风偏瘫）可能无法按压；颈挂款可单手大面积拍击触发80% similarUnverified腕式相比臂式易受末梢动脉硬化影响，糖尿病、动脉硬化、高龄（70岁以上）人群外周血管弹性差，腕部测值可能偏高或偏低，这类人群应优先选臂式而非腕式80% similar
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