曾有报导仰卧增压试验(翻转试验rollover test)能可靠的预示初产妇有发生妊娠高血压和先兆子痫的危险。本文对孕28～32周初产妇进行翻转试验。试验结果异常者32例,分两组对比验证其效果。16例令其每日至少保持左侧卧位4小时,及正常左侧卧床休息。每二周检查一次,若血压上升,比平均动脉压≥9度,则鼓励其每日保持左侧卧位至少6小时。孕期不改变饮食习惯,不需要减少工作时间或停止工作,只要完成每日4小时的左侧卧 It has been reported that supine pressure test (rollover test rollover test) can reliably predict the risk of first trimester pregnancy-induced hypertension and preeclampsia. This article 28 to 32 weeks pregnant primiparous flip test. 32 cases of abnormal test results, compared the effectiveness of the two groups to verify. Sixteen patients were instructed to maintain their left lateral position for at least 4 hours daily, and their left bed rest normally. Inspected every two weeks, if the blood pressure, the average arterial pressure ≥ 9 degrees, then encouraged to maintain the left lateral position for at least 6 hours a day. Pregnancy does not change the diet, do not need to reduce working hours or stop working, as long as the completion of the left lateral 4 hours a day