《妇产科学》课程教学课件（PPT讲稿）normal labor & delivery

The normal labor delivery Sun Dina

The normal labor & delivery Sun Dina

Definition: *The products of conception which include fetus and placenta are expulsed from mater. It goes with effective sequence of involuntary uterine contractions,which result in effacement and dilatation of the cervix and voluntary bearing-down efforts

Definition: ❖ The products of conception which include fetus and placenta are expulsed from mater. ❖ It goes with effective sequence of involuntary uterine contractions, which result in effacement and dilatation of the cervix and voluntary bearing-down efforts

Definition: A delivery that occurs before 28 weeks of gestation is called an abortion.In some other countries,the time defined as 20 or 24 weeks. It is a dynamic process

Definition: ❖ A delivery that occurs before 28 weeks of gestation is called an abortion. In some other countries, the time defined as 20 or 24 weeks. ❖ It is a dynamic process

Relative Definitions: premature delivery: The delivery occurs between 28 weeks and 36+6 weeks. Term delivery: The delivery occurs between 37 weeks and 41+6 weeks. Postterm delivery: The delivery occurs 42 weeks or more

Relative Definitions: ❖ premature delivery: The delivery occurs between 28 weeks and 36+6 weeks. ❖ Term delivery: The delivery occurs between 37 weeks and 41+6 weeks. ❖ Postterm delivery: The delivery occurs 42 weeks or more

Relative Definitions: Parity:the state of having given birth to an infant or infants weighing 500g or more, alive or dead.The length of gestation of 24 weeks or more may be used. Nullipara:the woman has not delivered an offspring weighing 500g or more or of 24 weeks gestation or more

Relative Definitions: ❖ Parity: the state of having given birth to an infant or infants weighing 500g or more, alive or dead. The length of gestation of 24 weeks or more may be used. ❖ Nullipara: the woman has not delivered an offspring weighing 500g or more or of 24 weeks gestation or more

Relative Definitions: Primipara:the woman has given birth to such a fetus once. Multipara:the woman has given birth to such a fetus more than once

Relative Definitions: ❖ Primipara: the woman has given birth to such a fetus once. ❖ Multipara: the woman has given birth to such a fetus more than once

Relative Definitions: Gravidity:it refers to the total number of pregnancies,including abortions, hydatidiform moles,ectopic pregnancies, and normal intrauterine pregnancies. Nulligravida:the woman has never been pregnant

Relative Definitions: ❖ Gravidity: it refers to the total number of pregnancies, including abortions, hydatidiform moles, ectopic pregnancies, and normal intrauterine pregnancies. ❖ Nulligravida: the woman has never been pregnant

Relative Definitions: Primigravida:the woman has been pregnant only once. Multigravida:the woman has been pregnant more than once

Relative Definitions: ❖ Primigravida: the woman has been pregnant only once. ❖ Multigravida: the woman has been pregnant more than once

Relative Definitions: True labor:it is characterized by regular uterine contractions which become more frequent and forceful and of longer duration with the passage of time,accompanied by effacement and dilatation of the cervix. False labor:it is quite common in late pregnancy, which characterized by irregular brief uterine contractions,inconsistent in interval and strength and cause no changes in the cervix

Relative Definitions: ❖ True labor: it is characterized by regular uterine contractions which become more frequent and forceful and of longer duration with the passage of time, accompanied by effacement and dilatation of the cervix. ❖ False labor: it is quite common in late pregnancy, which characterized by irregular brief uterine contractions, inconsistent in interval and strength and cause no changes in the cervix

◆effacement of the internal os uter Cervix external os uteri the onsetof labor uncomplete effacement of ◆dilatation of the the cervix cervix complete effacement of the cervix Full dilatation nullipara multipara

◆effacement of the Cervix ◆dilatation of the cervix nullipara multipara complete effacement of the cervix uncomplete effacement of the cervix the onset of labor external os uteri internal os uteri Full dilatation