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NORMAL LABOR wang jingyin

NORMAL LABOR wang jingyin. Ⅰ . Definition Delivery is the process by which the mature or nearly mature (fetus and placenta) are expelled from the maternal body. The term delivery refers to the labor occurring between the beginning of the 37w to 42w.

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NORMAL LABOR wang jingyin

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  1. NORMAL LABORwang jingyin

  2. Ⅰ . Definition Delivery is the process by which the mature or nearly mature (fetus and placenta) are expelled from the maternal body. The term delivery refers to the labor occurring between the beginning of the 37w to 42w.

  3. The premature delivery refers to the labor occurring between the 28w to the 37w. The postdelivery refers to the labor occurring over 42w.

  4. Ⅱ. Agents of labor 1. Mechanical theory 机械性理论 2. Endocrine regulating theory 内分泌控制理论 3. Neurohumor theory 神经介质理论

  5. Ⅲ .Factors affecting labor. There are four factors affecting labor: expulsive force, the fetus (line position and presentation of fetus), passage (the bony pelvis and soft tissue), and psychological factors. If the four factors accommodate each other, the fetus may be easily delivery, otherwise difficult delivery may occur.

  6. 1. The powers 产力 1) uterine contraction rhythm 节律性

  7. symmetry 对称性 polarity 极性 retraction 缩复作用

  8. 2) abdominal muscles and diaphragm 腹肌、膈肌 3) levator 肛提肌

  9. 2. Birth canal 产道 1) bony pelvis 骨产道 pelvic inlet plane 骨盆入口平面

  10. mid plane of pelvis 中骨盆平面

  11. pelvic outlet plane 骨盆出口平面

  12. 2) the soft part of the birth canal 软产道 formation of lower segment changes in the cervix changes in the floor of pelvis, vagina and perineum

  13. 3. The fetus 胎儿 1) size of the fetus

  14. 2) position of the fetus 胎位 3) abnormality of the fetus 胎儿畸形 4. Psychological factors 精神心理因素

  15. Ⅳ. The mechanism of normal labor in vertex presentation 1. Engagement 衔接 2. Descent 下降 3. Flexion 俯屈 4. Internal rotation 内旋转 5. Extension 仰伸 6. Restitution and external rotation 复位、外旋转 7. Expulsion of fetus 胎儿娩出

  16. Ⅴ. Threatened labor and in labor 1. Threatened labor 先兆临产 1) false labor 假临产 2) lightening 胎儿下降感 3) show 见红 2. In labor 临产

  17. Ⅵ. Total stage of labor 总产程 1. The first stage or dilatation of the cervical OS 初产妇 11－12h 经产妇 6－8h 2. The second stage or expulsion of the fetus初产妇 1－2h 经产妇 数分钟－1h 3. The third stage or expulsion of the placenta 5－15min

  18. Ⅶ. Clinical course and treatment in first stage 1. Uterine contraction 子宫收缩 2. Fetal heart rate 3. Dilatation of the cervix and descent of the fetal head 4. Rupture of membranes 5. General menagement

  19. Ⅷ. Clinical course and treatment in second stage 1. Clinical findings 2. Treatment

  20. Ⅸ. Clinical course and treatment in third stage 1. Clinical findings 2. treatment

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