LABOR AND DELIVERY EXAM 2026 FINAL
REVIEW BUNDLED SOLUTION PACKAGE
◉ What are primary and secondary Powers? Answer: Primary: provided
by uterine muscle (1st stage of labor)
Secondary: maternal bearing down efforts. Ferguson's reflex.
◉ What is Ferguson's reflex? Answer: The self-sustaining cycle of
uterine contractions initiated by pressure at the cervix or vaginal walls. It
is an example of positive feedback in biology.
◉ Give some characteristics of contractions: Answer: 1. Coordinated
2. involuntary
3. intermittent
◉ What is the most conclusive sign that mom is in labor? Answer: If
contractions are causing dilatation.
◉ How does dilatation occur? Answer: by the drawing upward of
musculofibrous components of cervix caused by strong contractions,
pressure on cervix by membranes or fetal pressing part.
◉ review passenger positions and passage Answer:
, ◉ What could be factors in maternal Psyche? Answer: 1. Past OB
history
2. Cultural values
3. Current pregnancy experience
4. Psychological responses
◉ Theory of labor onset: Estrogen/Progesterone Answer: Levels of both
hormones regulate changes in oxytocin levels and receptors of oxytocin
in uterus. Progesterone levels decrease as the pregnancy comes to term.
◉ Theory of labor onset: Oxytocin Answer: Uterus becomes more
sensitive to oxytocin as reaches term. Oxytocin seems to rise during
labor, especially during 2nd stage.
◉ Theory of labor onset: Prostaglandins Answer: increase in
prostaglandin in amniotic fluid and fetal membranes
◉ Theory of labor onset: Fetal endocrine Answer: as fetus matures, fetal
adrenals secrete corticosteroids and fetal oxytocin that trigger
mechanisms leading to labor
◉ What would be some assessment findings of false labor? Answer: 1.
mom is not dilated (contractions not causing dilatation)
2. irregular contractions: not getting stronger, closer together, not
patterned.
REVIEW BUNDLED SOLUTION PACKAGE
◉ What are primary and secondary Powers? Answer: Primary: provided
by uterine muscle (1st stage of labor)
Secondary: maternal bearing down efforts. Ferguson's reflex.
◉ What is Ferguson's reflex? Answer: The self-sustaining cycle of
uterine contractions initiated by pressure at the cervix or vaginal walls. It
is an example of positive feedback in biology.
◉ Give some characteristics of contractions: Answer: 1. Coordinated
2. involuntary
3. intermittent
◉ What is the most conclusive sign that mom is in labor? Answer: If
contractions are causing dilatation.
◉ How does dilatation occur? Answer: by the drawing upward of
musculofibrous components of cervix caused by strong contractions,
pressure on cervix by membranes or fetal pressing part.
◉ review passenger positions and passage Answer:
, ◉ What could be factors in maternal Psyche? Answer: 1. Past OB
history
2. Cultural values
3. Current pregnancy experience
4. Psychological responses
◉ Theory of labor onset: Estrogen/Progesterone Answer: Levels of both
hormones regulate changes in oxytocin levels and receptors of oxytocin
in uterus. Progesterone levels decrease as the pregnancy comes to term.
◉ Theory of labor onset: Oxytocin Answer: Uterus becomes more
sensitive to oxytocin as reaches term. Oxytocin seems to rise during
labor, especially during 2nd stage.
◉ Theory of labor onset: Prostaglandins Answer: increase in
prostaglandin in amniotic fluid and fetal membranes
◉ Theory of labor onset: Fetal endocrine Answer: as fetus matures, fetal
adrenals secrete corticosteroids and fetal oxytocin that trigger
mechanisms leading to labor
◉ What would be some assessment findings of false labor? Answer: 1.
mom is not dilated (contractions not causing dilatation)
2. irregular contractions: not getting stronger, closer together, not
patterned.
