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无刺激试验(NST)系用分娩监护仪观察胎动及相应的胎心率变化,以了解胎儿宫内情况。此法安全、简便、易于掌握,无反指征。近十余年来,已较广泛应用于临床,特别是高危妊娠的监护。其可靠性,取决于对描图的解释。多数作者系根据一定时间有加速反应的胎动次数判断胎儿安危。加速反应的标准,即胎动时胎心率加速次数及加速持续时间(从NST描图看即胎动时胎心率
No stimulation test (NST) Department of childbirth monitor observation of fetal movement and the corresponding fetal heart rate changes in order to understand the intrauterine conditions. This method is safe, simple, easy to grasp, no anti-indications. More than 10 years, has been more widely used in clinical, especially the care of high-risk pregnancy. Its reliability depends on the interpretation of the tracing. Most authors determine the safety of the fetus based on the number of fetal movement that has accelerated response over time. Acceleration of the standard, that is, fetal movement fetal heart rate acceleration and acceleration of the duration (from the NST tracings that fetal movement when fetal heart rate