通过特定波长的光波，照射脚趾或手指，结果显示于另一端的监测仪上，用于简接测定血氧饱和度。
The test measures oxygen levels indirectly, by shining certain wavelengths of light through a foot or finger onto a sensor on the other side.
两组心电监测仪监测结果均在正常范围内，但研究组血压、血氧饱和度、心率、呼吸频率较小，SPO2高于对照组。
Monitoring results of both groups were within normal limits, but BP, BOS, HR and RR were lower and SPO2 higher in the research than in the control group.
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