经鼻脉搏血氧饱和度测定法会高估血氧饱和度。
Nasal pulse oximetry overestimates oxygen saturation.
作者信息
Rosenberg J, Pedersen M H
机构信息
Department of Surgical Gastroenterology, Hvidovre University Hospital, Denmark.
出版信息
Anaesthesia. 1990 Dec;45(12):1070-1. doi: 10.1111/j.1365-2044.1990.tb14892.x.
Abstract
Ten surgical patients were monitored with nasal and finger pulse oximetry (Nellcor N-200) for five study periods with alternating mouth and nasal breathing and switching of cables and sensors. Nasal pulse oximetry was found to overestimate arterial oxygen saturation by 4.7 (SD 1.4%) (bias and precision).
摘要
对10名外科手术患者在五个研究阶段进行监测，采用鼻式和指式脉搏血氧饱和度仪（Nellcor N - 200），期间交替进行口呼吸和鼻呼吸，并更换电缆和传感器。结果发现，鼻式脉搏血氧饱和度仪测得的动脉血氧饱和度高估了4.7（标准差1.4%）（偏差和精密度）。
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