Week 04 Flashcards
Introduction to Labor and Postpartum (63 cards)
labor initiation theories
- estrogen and progesterone ratio
- prostaglandins
- positive feedback loop
- aging placenta
labor assessment
- interview
- review of prenatal record
- consent forms
- cultural influences
- physical exam
- Leopold’s maneuvers
- cervical exam
- membrane’s status
- contraction assessment
5 P’s of labor
- passenger
- passageway
- powers
- position (passenger and passageway)
- psychological influences
passenger
- fetal lie: position compared to the maternal spine
- attitude: the position of the fetal head
passageway
- birth passage
- affected by pelvis size, pelvis shape, ability to efface and dilate
powers
- uterine contractions: duration, frequency, intensity
- maternal pushing efforts: involuntary, patients who do not have the urge to push may be less effective
position (passenger and passageway)
- the presenting parts relationship to the maternal pelvis
- fatal station
- presenting part
- engagement
- presentation
psychological influences
stress, tension, anxiety
molding
- sutures allow for the bones of the skull to overlap
- the skull may be more cone shaped at birth, but will return to normal in the first few days of life
what causes the skull to be cone shaped at birth
molding
mentum
fetal chin (face presentation)
occiput
the area of the fetal skull that is occupied by the occipital bone, beneath the posterior fontanelle
sacrum
breech position (butt presentation)
acromion
acromion process (shoulder presentation)
fetal tachycardia
- greater than 160 BPM
- caused by: fetal anemia, hypoxia, fever, maternal dehydration, medications, infection, substance abuse
fetal bradycardia
- less than 110 BPM
- caused by: medications, maternal hypotension, hypoglycemia, cord prolapse, fetal heart block, contraction patterns, abruption, rupture or chronic head compression
prolonged deceleration
greater than 15 beats lasting 2-10 minutes
tachysystole
greater that 5 contractions in 10 minutes
presentation
which direction the fetal spine/ baby is facing
signs of labor
- energy spurt
- lightening: subjective
- engagement: objective
- increase in vaginal secretions
- loss of mucus plug
- bloody show
- ruptured membranes
- cervical changes
rupture of membrane assessments
ROM, nitrazine test for pH, fern test, amnisure
ROM assessment
- SROM
- AROM
nitrazine test for pH
- amniotic fluid is alkaline
- amniotic fluid pH of 6.5-7.5
- vaginal pH of 3.8-4.2
- blue= positive; yellow= negative
fern test
- sterile vaginal swab
- if positive the sample will look like a fern under the microscope