1病例资料女性39岁,已婚,住院号262649,孕4产1。因“停经40+5周,无腹痛”于2011年4月27日入院。平素月经规律,28天行经1次,末次月经2010年7月25日。停经30d自测尿妊娠试验阳性,依据早期B超,早孕反应出现时间,胎动情况核实孕周无误。定期产检,孕期平顺, 1 Case Information Female 39 years old, married, hospital number 262649, pregnant 4 produce 1. Because of “menopause 40 +5 weeks, no abdominal pain” was admitted on April 27, 2011. Normal menstrual regularity, 28 days after 1, the last menstrual July 25, 2010. Menopause 30d self-test urine pregnancy test was positive, based on early B-ultrasound, early pregnancy reaction time, fetal movement to verify the correct gestational age. Regular check-up, smooth pregnancy,