Exam Questions and CORRECT Answers
1. Changes in maternal estrogen -> estrogen (increases), progesterone (decreases)
Higher levels of estrogen enhance uterine sensitivity to substances that stimulate contractions,
lower levels of progesterone causes release of prostaglandins = uterine contractions
2. Prostaglandin secretion -> Prostaglandins are released from placenta (forebag). Increase of
prostaglandins d/t pressure of fetus on cervix
3. Increased secretion of oxytocin -> uterine contractions
4. Oxytocin receptors increase -> more responsive to oxytocin
5. Fetal role -> fetal membranes release high concentration of prostaglandins, large amount of
fetal cortisol secreted by fetal adrenal glands = uterine stimulant
6. Stretching, pressure, and irritation of the uterus -> (at term) fetal head stretches the cervix
causing fundus to contract, pushing the head against the cervix causing more contractions.
Cervical stretching also cause release of oxytocin - CORRECT ANSWER - what are the
labor theories?
Braxton Hicks contractions (practice contraction) muscles of uterus tighten briefly
Lightening - baby settles/drops lower into maternal pelvis
Increase in clear and non-irritating vaginal secretions
"Bloody show"
Energy spurt (nesting)
Small weight loss
Urinary frequency
-The conclusive difference between true and false labor is
progressive effacement and dilation of the cervix. - CORRECT ANSWER - What are the
premonitory signs of labor? How can we tell the difference between true and false labor?
First stage - The time of the onset of true labor until the cervix is completely dilated to 10 cm
Latent phase -> onset - 3 cms
, Active phase -> 4-7 cms
Transition phase -> 8-10 cms
Second stage - The period after the cervix is dilated to 10 cm until the baby is delivered
Third stage - Delivery of the placenta
Fourth stage - Begins with delivery of the placenta and ends 4 hours after delivery - CORRECT
ANSWER - What are the 4 stages of labor and what happens during each stage?
Uterine contractions - during the first phase of labor (onset to dilatation) primary force pushing
fetus through the maternal pelvis
Maternal pushing efforts - during the second phase of labor (dilation to birth) woman uses
voluntary pushing efforts to propel fetus through pelvis - CORRECT ANSWER - What
are the 2 powers of labor? During which phase does each happen in?
The relationship of fetal parts to each other, the posture of the fetus; flexion, deflexion, extension
- CORRECT ANSWER - What is fetal attitude?
Part of the fetus that lies closest to or has entered the pelvis and it is described as cephalic,
breech, or shoulder - CORRECT ANSWER - What is fetal presentation?
The relationship of the presenting part to the maternal pelvis and it is described as anterior,
posterior, or transverse; right occipitoposterior, right occipitotransverse, right occipitoanterior,
same with left for all 3 - CORRECT ANSWER - What is fetal position?
-ability to cope with labor pain
-catecholamines - CORRECT ANSWER - Psyche - The state of the mother's psyche is a
crucial aspect of childbirth.
Marked anxiety, fear, or fatigue decreases a woman's what?
Maternal what are secreted in response to anxiety or fear to help cope with these emotions?
Relaxation augments (increases) the natural process of labor