Final answer:
When the midwife says the client is 4 cm dilated and 60% effaced, it means that the cervix has opened up by 4 cm and it is 60% thinner than it was before.
Step-by-step explanation:
During labor, the cervix goes through various changes in preparation for childbirth.
When the midwife says the client is 4 cm dilated and 60% effaced, it means that the cervix has opened up by 4 cm and it is 60% thinner than it was before.
These changes in the cervix are necessary for the baby to pass through the birth canal during delivery.