一直认为胎儿对各种刺激反应引起心率增速是情况良好的可靠征象。作者应用非侵入性接触刺激胎儿头皮引起心率增速与以后取头皮血样所测得的pH 值比较其相关性。以100例心率描记提示有酸中毒可能因而需要测头皮血的胎儿作为研究对象。产妇均于第一产程宫颈扩张2～9cm时在胎儿头皮上用手指轻压15秒钟,然后通过阴道将一无损伤性 Allis 夹在第一 It has long been thought that fetal responses to a variety of stimuli cause heart rate growth is a good, reliable sign. The authors applied noninvasive contact to stimulate the fetal scalp to cause increases in heart rate compared with scalp blood samples measured after the pH value compared. A study of 100 fetuses with heart rate suggestive of acidosis may therefore require a testicle blood. Maternal are in the first stage of labor cervical dilatation 2 ~ 9cm in the fetal scalp with your fingers gently press for 15 seconds, and then through the vagina will be a non-invasive Allis caught in the first