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58 Cards in this Set
- Front
- Back
Reasons for antepartal fetal assessment
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detect congenital anomolies
evaluate condition of the fetus *amneocentesis *ultrasonography |
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Ultrasonography
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projected through the abdomen or vagina
2 dimensional images showing sturctures of different densities |
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3 levels of Obstetric Ultrssound
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Basic
Comprehensive Limited |
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Basic Ultrasound
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general survery of the fetus, placenta and amniotic fluid quantity
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Comprehensive Ultrasound
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"extended"
ordered if abnoralities are found targets the questionable findings |
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BPP
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Bio-phsical Profile
FHR fetal breathing movements gross fetal movement fetal muscle tone amniotic fluid volume |
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Amniotic Fluid Volume
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> 10 = reassuring
< 5 = oligohydramnios |
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Hematopoetic System changes
Hg level of 10.5 g/dl Hct of 33% |
500 mL max normal blood loss during vaginal birth
clotting factors are elevated |
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Fetal Placental Circulation
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exchange hapens during the interval of contractions
usually has enough on reserve |
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Fetal Protective Mechanisms
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Fetal Hg
High Hg and HCT levels high cardiac output |
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Cardiovascular Fetal Changes
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110-160 bpm
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Pulmonary Fetal Changes
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production of fetal lung fluid decreases, absorption into lungs increases
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Catecholamines
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Epi and NE
stimulate cardiac contraction quicken clearance of lung fluid temperature regulation |
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Powers
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Contraction
maternal pushing efforts |
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Passage
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maternal pelvis and soft tissues
-softening of the cartilage linking |
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Passenger
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Fetal head
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Biparietal diameter
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9.5 cm in a term fetus
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Normal fetal attitude
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FLEXION
head towards chest arms and legs over thorax back is curved in c shape |
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Presenting part
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the part that first enters the pelvis
CEpahlic, Breech, Shoulder |
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CEphalic Presentation VAriations
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Vertex- MIlitary- brow- face
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Breech position
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buttocks enter first
- Frank - Full -Footling |
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Shoulder Presentation
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C-section is necessary
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Occiput
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vertex position
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Chin
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reference point in a face presentation
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Sacrum
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used for breech presentations
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Onset of Labor
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Increases in:
- Prostaglandin -Oxytocin - Oxytocin Receptors - stretching pressure, irritation of the uterus |
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Braxton HIcks COntraction
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contractions become more noticeable and painful
keep you up at night... |
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Lightening
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breathing more easliy once the fetus drops toward the pelvic inlet
urination increases |
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Cervix
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softens by Relaxin
increased water content |
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Bloody Show
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mix of thick mucus and pink or dark brown blood--expulsion of mucous plug
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small weight loos before labor
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2.2-6.6 kg or 1-3 lbs
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True Labor
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contractions cause progressive change in the cervix
increase in effacement and dilation occurs |
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First Stage of Labor
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Effacement & Dilation
onset of contractions-->complete dilation Longest |
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Active Phase
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dilates 1 cm / hour
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Latent Phase
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first 3 cm of cervical dilation
long unnoticed effacement fetal position change discomfort in back |
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Active Phase
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pace of labor increases
4-7 cm dilated fetus descends and internal rotation occurs |
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Transition phase
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8-10 cm dilated
strong contractions |
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Second Stage ( Expulsion)
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"labor"
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Third STage ( Placental)
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Schultz Mechanism- shiny, fetal side presents first
Duncan mechanism- rough/ maternal side first |
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FOurth Stage
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physical recovery
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Abortion
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before 20 weeks
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Nursing During admission
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establish therapeutic relationship
assess condition of mom and fetus |
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Reassuring FHR
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11o-160 bpm
regular rhythym accelerations present absence of decelerations |
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Mom's VItals
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BP 140/90= hypertension
Temp aboce 38 C = infection |
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Fetal Assessment
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FHR
COlor and odor of amniotic fluid time of rupture of membranes |
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Labor Status
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Contractions ( palpation)
dilation, effacement, fetal station and position ( vaginal) |
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Lab Tests often used
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Hematocrit
Urine- protein and glucose levels |
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prolapsed cord
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compression and interruption of blood flow through
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normal amniotic fluid
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clear with bits of vernix ( creamy white fetal skin lubricant)
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Cloudy, yellow amnitoic fluid
foul-smelling |
infection
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Green Amniotic fluid
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fetus passed meconium before birth
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Amniotic quanityt
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> 1000 mL = large
500-1000 moderate trickle= scant |
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INtake and output
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suprapubic area palpated every 2 hours
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Reduce fetal oxygen, nutrient and waste exchange
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maternal hypo/hypertension
maternal fever strong and long contractions compression of umbilical cord |
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Nursing Responsibilities
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promote normal placental function
observe for and report problems to the physician |
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Maternal positioning
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primary measure to promote placental function during normal labor
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Urge to push
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cervix is fully dilated
effaced fetus descends to 1+ station and internally rotates |
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pushing against a cervix complications
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edematous cervix
lacerated cervix |