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1临床资料孕妇,22岁,未婚,G1P0,停经约30周,平素月经欠规律,末次月经不详,无猫、狗、有毒物质、放射线等接触史,孕妇本人及其男友均无吸烟及饮酒嗜好,无家族遗传病、传染病、特殊疾病史。孕妇未定期进行产前检查,仅于孕约28周时作尿妊娠试验示阳性,孕29周时自觉胎动,一周后于我院首次进行彩色多普勒超声检查示:胎儿姿势较固定,双顶径9.1 cm,头围31.4 cm,胸围21.4 cm,腹围26.1 cm,
1 clinical data pregnant women, 22 years old, unmarried, G1P0, menopause about 30 weeks, usually irregular menstruation, the last menstrual unknown, no cats, dogs, toxic substances, radiation and other exposure history, pregnant women and their boyfriend had no smoking and drinking habits , No family genetic disease, infectious disease, a history of special diseases. Pregnant women did not regularly conduct prenatal examination, only for gestational about 28 weeks for urine pregnancy test showed positive 29 weeks pregnant fetus conscious fetal motion, a week later in our hospital for the first time color Doppler ultrasound showed: fetal posture more fixed, double The top diameter 9.1 cm, head circumference 31.4 cm, chest circumference 21.4 cm, abdominal circumference 26.1 cm,