N351 Exam 2 Questions And Answers |Latest
2025 | Guaranteed Pass.
What are the four main components of the birth process? - Answer✔1) powers
2) passage
3) passenger
4) psyche
What are the three characteristics of uterine contractions? - Answer✔1) Coordinated:
frequency (beginning of one to beginning of next)
duration (beginning to end of same contraction)
intensity (strength of a contraction)
2) involuntary (can't control when they come)
3) intermittent (they come an dgo)
What are the phases of the contraction cycle? - Answer✔1) increment (increasing strength)
2) acme/peak (most intense moment)
3) decrement (decreasing intensity as uterus relaxes)
How is blood flow to the placenta affected during a contraction? - Answer✔blood flow to
placenta decreases as muscle fibers of the uterus constrict around maternal spiral arteries that
supply the placenta
When are maternal vital signs best assessed? - Answer✔during the interval between
contractions
What is "bearing down"? - Answer✔uterine contractions -> primary force that moves fetus
through maternal pelvis
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maternal pushing efforts: woman feels urge to push as fetus distends the vagina and puts
pressure on the rectum
What aspects are involved in "passage" phase of birth? - Answer✔maternal pelvis and soft
tissues
pelvis is more important to outcome of labor than the soft tissue
soft tissue (cervix) will efface and dilate
What is "complete" dilation?
"complete" effacement? - Answer✔10 cm = complete
fingertip= 1 cm
100%= thinning and shortening of cervical thickness
What does the passenger include? - Answer✔the fetus, membranes, and placenta (all need to
come out)
What is "fetal presentation"? - Answer✔the fetal part that first enters the pelvis
cephalic/head can either be 1) vertex/occiput (head is flexed) or 2) face (head extended)
shoulder presentation
breech (frank, full/complete, or footling)
Different breech positions - Answer✔frank= folded
full/complete= squatting position
footling= one or both feet coming first
How do we want the baby to present? - Answer✔cephalic/head presentation (feel for
fontanels)
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smallest diameter= occiput
What is the "fetal attitude"? - Answer✔relationship of fetal body parts to each other (NOTHING
to do with the mom)
flexion=normal (humble, prayerful position)
extension ("nose in the air"= haughty)
What is the "fetal lie"? - Answer✔orientation of the long axis (spine) of the fetus to the long
axis of the woman
longitudinal lie= vertical (what we want)
transverse lie= horizontal (not good)
What is "fetal position"? - Answer✔location of fixed reference point on the presenting part in
relation to the four quadrants of the maternal pelvis
3 parts:
1) orientation to side of maternal pelvis (L for left, R for right)
2) Fetal presenting part (O for occiput, M for mentum/chin, S for sacrum)
3) Orientation of presenting part to the mom (A for anterior/front, P for posterior/back, T for
transvers)
I.E.
LOP = left side of mom's pelvis occiput presenting part towards posterior side ("sunny side up")
anterior position more favorable than posterior
What is involved in the psyche phase? - Answer✔anxiety
culture/expectations
life experiences
social support
What factors promote labor to start? - Answer✔progesterone levels fall
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