Usually a childbirth can occured in three stages:
First stage: It is consider as a true labor time, in which cervix is completely dilated to 10 cm.
Second stage: It is a period which can started after the cervix is completely dilated to 10 cm and it can ends until the baby was born.
Third stage: Delivery of the placenta.
First Stage of Labor
It is the longest phase of the labor and can be classified into three phases there are
Early Labor Phase: The time of the onset of labor until the cervix is dilated to 3 cm.
Active Labor Phase: Continues from 3 cm. until the cervix is dilated to 7 cm.
Transition Phase: Continues from 7 cm. until the cervix is fully dilated to 10 cm
According to the given situation Ann reaches 8 cm, so she was present in First stage Transition phase.
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