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Labor and Delivery. Marianne F. Moore. Critical Factors in Labor. Passage. Critical Factors in Labor. Passage Passenger. Critical Factors in Labor. Passage Passenger Powers. Critical Factors in Labor. Passage Passenger Powers Psyche. Critical Factors in Labor. Passage
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Labor and Delivery Marianne F. Moore
Critical Factors in Labor • Passage
Critical Factors in Labor • Passage • Passenger
Critical Factors in Labor • Passage • Passenger • Powers
Critical Factors in Labor • Passage • Passenger • Powers • Psyche
Critical Factors in Labor • Passage • Passenger • Powers • Psyche • Position(Maternal)
Critical Factors in Labor • Passage • Passenger • Powers • Psyche • Position (Maternal) • Placental
Skeletal Structures Pelvis Types Gynecoid Anthropoid Android Platypelloid Passage
Skeletal Structures Pelvis Types Gynecoid Anthropoid Android Platypelloid Passage
Soft Tissue Structures Cervix Cervical Scarring Vagina Obstructions “Tissue Dysplasia” Passage
Passenger • Lie
Passenger • Lie • Attitude
Passenger • Lie • Attitude • Presentation
Passenger • Lie • Attitude • Presentation • Position
Passenger • Lie • Attitude • Presentation • Position • Station
Contractions Duration Frequency Intensity Powers
Contractions Increment Acme Decrement Powers
Fatigue Anxiety Trust in Medical Care and Self Ability to Receive and Use Support Psyche • Immediate Issues
Pre-Existing Issues Motivation for the Pregnancy Self-Confidence Personal Expectations Relationship with Support Person(s) Culture and Its’ View of Childbirth Obstetric/ Family History Childbirth Education Classes Psyche
Maternal Position • Bedrest: Low semi-Fowler’s • Necessary position with epidural placement • Patient is tipped to one side to avoid vena cava syndrome • Changing position from one side to other changes relationship of presenting part to maternal pelvis
Maternal Position • Bedrest: Side-lying or “runner’s position” • Useful for rest in early labor • Also a good position for sleep in advancing pregnancy • Needs lots of pillows for comfort and correct positioning
Maternal Position • Upright Positions: • Chair/Rocker • Walking • Stair Climbing (especially 2 at a time) • Birthing Ball • Squatting/Squat Bar • Toilet sitting
Maternal Position • Positions to help back labor: • Leaning over the bed • All fours • Pelvic rocking • Leaning on the hallway bars • Slow dancing • Counterpressure
Placenta • Low-lying placenta may cause the baby to assume a transverse lie • May also impede descent of the baby
Cardinal Movements • Engagement
Cardinal Movements • Engagement • Descent
Cardinal Movements • Engagement • Descent • Flexion
Cardinal Movements • Engagement • Descent • Flexion • Internal Rotation
Cardinal Movements • Engagement • Descent • Flexion • Internal Rotation • Extension
Cardinal Movements • Engagement • Descent • Flexion • Internal Rotation • Extension • Restitution
Cardinal Movements • Engagement • Descent • Flexion • Internal Rotation • Extension • Restitution • External Rotation
Cardinal Movements • Engagement • Descent • Flexion • Internal Rotation • Extension • Restitution • External Rotation • Expulsion (BIRTH!)
Signs of Labor • Lightening • Frequent Urination • Sciatic Nerve Discomfort • Back Discomfort
Signs of Labor • Lightening • Frequent Urination • Sciatic Nerve Discomfort • Back Discomfort • Braxton-Hicks (Warm-Up) Contractions • Vaginal Discharge • Bloody show • Nesting
Signs of Labor • Rupture of membranes • Called PROM if before contractions start • Amount of fluid can vary • Assess • Time of Rupture • Color of fluid • Clarity of fluid • Fetal movement since rupture? • Have contractions started?
Signs of Labor • What is “False Labor”? • Looks/feels like labor to mother but no change in cervix • Abdominal/groin pain • Changing level or type of activity makes contractions go away • Contractions don’t get stronger, longer or closer together (intensity, duration, frequency) • Contractions do not change the dilatation or effacement of cervix
Signs of Labor • What is “True Labor”? • Contractions that efface or dilate the cervix • Contractions usually cause low back pain or suprapubic pressure (or both) • Contractions are regular and rhythmic • Changing type or level of activity does NOT make them go away • Contractions get longer, stronger, closer together (duration, intensity, frequency)
Theories About the Onset of Labor • Progesterone Deprivation Theory • Oxytocin Theory • Fetal Endocrine Control Theory • Prostaglandin Theory
Physiologic changes with L & D • Labor is hard physical work
Physiologic changes with L & D • Labor is hard physical work • Increases in systolic and diastolic BP
Physiologic changeswith L & D • Labor is hard physical work • Increases in systolic and diastolic BP • Increased cardiac output
Physiologic changeswith L & D • Labor is hard physical work • Increases in systolic and diastolic BP • Increased cardiac output • Fluid and electrolyte loss: • diaphoresis • hyperventilation • elevated temperature
Physiologic changeswith L & D • Peristalsis slows in most of GI tract, except lower colon
Physiologic changeswith L & D • Peristalsis slows in most of GI tract, except lower colon • Decreased absorption of solids
Physiologic changeswith L & D • Peristalsis slows in most of GI tract, except lower colon • Decreased absorption of solids • Anorexia is common
Physiologic changes with L & D • Peristalsis slows in most of GI tract, except lower colon • Decreased absorption of solids • Anorexia is common • Nausea and vomiting can occur during transition
Fetal Response to Labor • Persistent fetal heart rate changes may indicate changes in fetal well-being
Fetal Response to Labor • Persistent fetal heart rate changes may indicate changes in fetal well-being • Most fetuses are well equipped for the stress of labor
Fetal Response to Labor • Persistent fetal heart rate changes may indicate changes in fetal well-being • Most fetuses are well equipped for the stress of labor • Initial assistance to the fetus is provided through the mother (position change, fluids, O2)
Fetal Response to Labor • Persistent fetal heart rate changes may indicate changes in fetal well-being • Most fetuses are well equipped for the stress of labor • Initial assistance to the fetus is provided through the mother (position change, fluids, O2) • A more thorough discussion is in the section on fetal monitoring