NURS 3330 Chapter Notes - Chapter 8: Heart Rate, Muscle Tone, Respiratory Rate
16 Jan 2017
School
Department
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Professor
Chapter 8: Intrapartum Assessment and Interventions
Friday, January 06, 2017
11:00 PM
Labor Triggers
Maternal Factors
o Uterine muscles are stretched
Causes the release of prostaglandins
Stimulates contractions
o Increased pressure on the cervix
Triggers the release of oxytocin
o Estrogen increases
o Progesterone production is decreased
o Oxytocin stimulates myometrial contractions
Fetal Factors
o Placenta deteriorates as it ages
Triggers contractions
The Process of Labor
Signs of impending labor
o Also known as premonitory signs
o Lightening
o Braxton-Hicks
o Cervical Changes
o Surge in Energy
o Gastrointestinal Changes
o Backache
o Bloody Show
Factors Affecting Labor
Essential components in the outcome of labor and delivery (4Ps)
1. Powers
2. Passage
3. Passenger
4. Psyche
5. Position
Powers
o The involuntary Ucs of labor and the voluntary pushing or bearing down powers that
combine to propel
Passage
o The bony pelvis and the soft tissues of the cervix, pelvic floor, vagina, and introitus
Passenger
o The fetus
o Fetal attitude and posture: the relationship of fetal parts to one another
Fetal Lie
o The long axis of the fetus in relationship to the long axis of the woman
o Fetal presentation: the part or pole of the fetus that first enters the pelvic inlet
o Presenting Part: the specific fetal structure lying nearest to the cervix
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Document Summary
Essential components in the outcome of labor and delivery (4ps) The involuntary ucs of labor and the voluntary pushing or bearing down powers that combine to propel. The bony pelvis and the soft tissues of the cervix, pelvic floor, vagina, and introitus. Fetal attitude and posture: the relationship of fetal parts to one another. The long axis of the fetus in relationship to the long axis of the woman. Fetal presentation: the part or pole of the fetus that first enters the pelvic inlet. Presenting part: the specific fetal structure lying nearest to the cervix. Fetal position: the relationship of the denominator or reference point to the maternal pelvis. Factors that influence the women"s coping mechanism include: True labor contractions bring about changes in cervical effacement and dilation. All pregnant women have access to medical care. Ongoing communication helps patient to have a smooth transition to labor. Positional changes in the presenting part required to navigate the birth canal.
