患者28岁，t孕0产．药流前误诊为宫内早孕的依据是：停经45d，子宫增大如孕sic周，尿卜hCG什），在外院做B超提示宫内妊娠．药流方法：米非司酮150mg分两次口服．第3无顿服米索前列停600mg，并留院观察6h．服药后有不同程度的阵发性下坠痛，数小时后缓解；均有阴道出血，少于月 Patient 28 years old, t pregnant 0 production. Misdiagnosed as preterm flow for intrauterine pregnancy on the basis of: menopause 45d, uterine enlargement such as sic weeks, urinary hCG even), in the outer court to do B-ultrasound intrauterine pregnancy. Flow method: mifepristone 150mg orally twice. The first 3 without mophead forefront stop 600mg, and stay in hospital for observation 6h. After taking different degrees of paroxysmal fall pain, relieve a few hours; have vaginal bleeding, less than the month