The choice of treatment in a live fetus with mentoposterior position is

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• 1Factors that hinder the forward rotation of an occipitoposterior position include all except

  A.android pelvis

  B.oxytocin augmentation

  C.poor pelvic muscle tone

  D.prematu rerupture of membranes

  E.myoma of uterus

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• 2In majority of cases，the occipitoposterior positions at the onset of labour

  A.spontaneously rotate anteriorly

  B.become direct occipitoposterior

  C.become occipitotransverse

  D.remain as occipitoposterior

  E.uncertainty

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• 3Occipitoposterior position is most commonly seen in the following type of pelvis

  A.gynecoid

  B.anthropoid

  C.android

  D.platypelloid

  E.osteomalacic

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• 4第二产程出现子宫收缩乏力，下列处理中正确的是

  A.肌注哌替啶

  B.即刻剖宫产分娩

  C.口服米索前列醇25μg

  D.缩宫素静脉滴注加地西泮静脉推注

  E.先露双顶径通过坐骨棘平面者，加强宫缩等待自然分娩或手术助产

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• 5下列剖宫产手术指征，哪一项不正确

  A.轻度骨盆入口狭窄

  B.足月肩先露

  C.头盆不称

  D.完全臀先露估计胎儿体重大于3500g

  E.骨盆出口狭窄

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• 6In a breech presentation，if a fetus maintains an attitude of universal flexion with the thighs flexed at the hips and legs at the knee，it is known as

  A.complete breech

  B.incomplete breech

  C.frank breech

  D.extended breech

  E.foot presentation

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• 7The best option for delivery if the head is arrested at the pelvic brim in transverse position in a viable fetus is

  A.cesarean section

  B.ventouse delivery

  C.forceps rotation of the occiput directly posterior

  D.forceps delivery with occiput directly posterior

  E.oxytocin augmentation

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• 8初产妇，30岁，妊娠40周，临产10小时，宫缩15〜25秒/5〜10分，不规则，宫口2cm，胎膜已破。正确的诊断是

  A.宫缩乏力

  B.潜伏期延长

  C.胎膜早破

  D.活跃期停滞

  E.头盆不称

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• 9初产妇，25岁，足月妊娠，临产16小时。产科检查:宫缩30秒/5分，规则，宫口开大1.5cm，先露头，S—2，胎膜已破，羊水I°。正确的诊断是

  A.宫缩乏力

  B.潜伏期延长

  C.活跃期停滞

  D.胎膜早破

  E.胎儿窘迫

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• 10初产妇，足月妊娠，临产10小时。产科检查:胎心135次/分，宫口开大4cm，ROA。2小时后再次肛诊宫口扩张无进展。正确的诊断是

  A.潜伏期延长

  B.活跃期延长

  C.活跃期停滞

  D.第二产程延长

  E.第二产程停滞

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