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目的:观察我校心理卫生支援分队阶梯式行进至高原(西安—拉萨—羊八井—拉萨)过程中的心率、收缩压、舒张压及经皮血氧饱和度的变化情况,为采取相应的应对措施提供科学的依据。方法:选择我校心理卫生支援分队8名队员,比较在行进过程中不同海拔地区的心率、收缩压、舒张压及血氧饱和度的变化情况。结果:与在西安相比,在高原血氧饱和度下降(P<0.01),心率加快(P<0.05),且在高原不同地点血氧饱和度差异显著、心率差异不显著。结论:阶梯式行进不能克服血氧饱和度下降,但可以有效预防高原适应不良症状的发生。血氧饱和度作为反映机体缺氧状况的指标比心率更加敏感、可靠。
Objective: To observe the changes of heart rate, systolic blood pressure, diastolic blood pressure and percutaneous oxygen saturation during the step-by-step movement of Mental Health Support Unit in our school to the plateau (Xi’an-Lhasa-Yangbajing-Lhasa) Provide a scientific basis for response measures. Methods: Eight team members from Mental Health Support Team of our school were selected to compare the changes of heart rate, systolic blood pressure, diastolic blood pressure and oxygen saturation at different altitudes in the process of traveling. Results: Compared with Xi’an, the oxygen saturation in the plateau decreased (P <0.01), the heart rate accelerated (P <0.05), and there was significant difference in the oxygen saturation between different places in the plateau, but the difference in heart rate was not significant. Conclusion: The step-by-step approach can not overcome the decline of oxygen saturation, but it can effectively prevent the occurrence of adverse symptoms of plateau adaptation. Oxygen saturation as an indicator of hypoxia in the body is more sensitive and reliable than heart rate.