EMT Obstetrics and Neonatal Care Complete Practice Exam 2026

The first stage of labor is referred to as the dilation stage, which is marked by the onset of labor contractions that lead to the dilation of the cervix. This stage begins with the onset of true labor and continues until the cervix is fully dilated to 10 centimeters, allowing for the passage of the baby through the birth canal.

During this stage, uterine contractions become more frequent and intense, and they help to gradually thin and open the cervix. It is crucial for understanding labor progression, as monitoring the dilation of the cervix helps healthcare providers assess how labor is progressing and when it may be time for the mother to start pushing during the next stage of labor, which is the expulsion stage.

The confusion with other terms can come from their definitions. The expulsion stage refers to the second stage when the baby is pushed out, the placental stage follows the birth and involves the delivery of the placenta, and the transition stage is a part of the dilation stage, specifically the late phase right before full dilation, characterized by more intense contractions and significant physical changes. Understanding these distinctions is essential for anyone involved in obstetric care.