Exam 2 Flashcards
(365 cards)
what are the 5 factors that affect the process of labor and birth?
Passageway
Passenger
Passage and passenger relationship
Physiological forces of labor
Psychologic response
what is the favorable shapes of the pevic inlet during birth?
Gynecoid and Anthropoid
what are the unfavorable shapes of the pelvic inlet during birth?
Android and Plataploid
what are fontanelles?
intersections of cranial sutures
what is the posterior fontanelle?
back of head, forms a triangle, and closes in 8-12 weeks
what is the anterior fontanelle?
front of head, forms a diamond, and closes by 18 mon
what can closed sutures with no fontanelle cause?
Skull fractures
what is a fetal lie?
relation of the fetal spine to maternal spine
what is a longitudal fetal lie?
fetus is vertical
what is a transverse fetal lie?
fetus is perpendicular to maternal spine (right angle, laying from side to side)
what is attitude?
relation of fetal parts to one another
-flexion is normal
what is presentation r/t the fetus/passenger?
the part of the fetus that enters the pelvis first and leads through the birth canal
what is a cephalic presentation?
fetal head is presenting
what is a breech presentation?
buttock or feet is presenting
what is a shoulder presentation?
acromium process of scapula is presenting
which presentation is the only one who can result in a natural birth?
Cephalic
- vertex presentation is normal and most common
what is engagement?
when largest transverse diameter of fetus has passed through pelvic inlet
“0 station”
when does engagment occur in a primigravida mother?
before labor
when does engagement occur in a multipara?
not until labor is established
what is the station?
location of the fetus in relation to an imaginary line btwn maternal ischial spines
what are the number ranges of a station?
-5 is high towards belly button
0 is in middle of ishical spines
5 is at bottom of ischial spines ready to be birthed
what is a primary power?
involuntary uterine contractions
what is a secondary power?
mothers bearing down efforts
what is a hypertonic uterus and what can it cause?
uterus does not relax between contractions
- can cause fetal distress