To do so leads to changes in maternal and fetal level, of which name a few:
Uterine contractions: are involuntary, are presented in 3 to 5 in 10 minutes on a regular basis during the progression of labor, lasting between 40 to 60 seconds and are accompanied by pain whose intensity is highly variable. The pain of contractions during labor is better tolerated by women who have good information and family support. During labor, the frequency, intensity and duration of contractions will be monitored clinically and / or by electronic monitoring.
Effacement and dilation: As a result of uterine contractions the cervix effaces (thins) and dilates (opens) to allow the fetal head descends gradually through the birth canal. Cervical dilatation defined the onset of labor when it is 3 cm or greater. When complete (10 cm) allows the passage of the fetus by the maternal pelvis. Cervical dilation is controlled by vaginal examination during labor progression in the opinion of professional acting.
Ovular membranes or bag of waters “are membranous structures that contain the fetus and amniotic fluid. Play the role of containment and protection of the fetus normally until they break spontaneously, occasionally artificially by the OB / to during labor. They are strained as a result of increased pressure to produce uterine contractions.
Rupture of membranes is not painful for the mother or the fetus and amniotic fluid can externalize in which the fetus is. The characteristics of this liquid in which the fetus “nothing” (color, smell, appearance) are important for the health team attends labor and birth which is always be supervised by it.
Fetus: In humans, the majority of pregnancies occur with a single fetus that is located longitudinally in relation to the body of the mother with her head to the maternal pelvis (cephalic presentation). This situation is most favorable obstetric the few maternal and fetal complications that occur.
During labor the baby is settling and making progress in its descent from the mother’s abdomen into the pelvis in order to occupy it gradually and go through the maternal genital outward, thereby fulfilling a normal mechanism of labor in cephalic presentation. The descent of the fetal head position and variety will be monitored during labor by health team acting
Fetal heart rate: Varies between 120-160 beats per minute and be checked periodically throughout the course of labor with stethoscope or electronic media. The control of fetal heart rate is of great importance because it allows us to monitor the fetal vitality.
A normal delivery is between 37 to 42 weeks of pregnancy, the due date (FPP) calculated for each pregnancy, which fixed the day met the 40 weeks of pregnancy, on average within normal limits of the end of pregnancy .
Once the labor using the controls described earlier, the same progress toward the period in which the fetus is expelled from the womb, this time lag in the delivery room again and have active phenomena that favor the exit of newly born,
Straining: It is the muscle strength that helps women to produce labor. We performed by contraction of the muscles of his abdomen and thorax. The straining must be preceded by a deep inspiration and strength must be maintained throughout the duration of uterine contraction.
The desire to push, by the mother is perceived as a sensation similar to a desire to “mobilize the bowel.” It appears in some situations early on (before full dilation) and must notify the acting team.
Tags: Effacement and dilation, fetal heart rate, fetal level, fetus, Maternal, maternal level, Pregnancy, straining, Uterine contractions
