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The sequence of birth process is ........

  • A.Birth - Dilation - cutting of umbilical cord - Detachment of Placenta
  • B.Dilation - Birth - Detachment of placenta - Cutting of umbilical cord
  • C.Cutting of umbilical cord - Dilation - Detachment of Placenta - Birth
  • D.Birth - Detachment of Placenta - Cutting of umbilical cord - Dilation

Answer: B

The keyed sequence is dilation, birth, detachment of the placenta, cutting of the umbilical cord.

Child development texts divide labour into three stages: the first is dilation of the cervix, the second is the birth (expulsion) of the baby, and the third is the afterbirth, when the placenta separates from the wall of the uterus and is expelled. This option is the only one that begins with dilation and puts birth second.

Every other option puts birth or cutting of the cord before dilation, which is impossible, because the cervix must dilate before the baby can pass. In hospital practice the cord is usually clamped and cut soon after birth, often before the placenta comes out, but the key follows the textbook order of the stages and only one option is consistent with it.

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