OB Week 5 PP

Which physiologic change contributes to the onset of labor?

Increased oxytocin sensitivity

A pregnant client reports increased energy and clean

Nesting

Which premonitory sign of labor occurs when the fetal presenting part descends into the pelvis?

Lightening

Bloody show results from:

Cervical capillary rupture with mucus release

Which finding indicates TRUE labor?

Cervical dilation occurs

A client reports contractions that become stronger and closer together with walking. Nurse interpretation?

True labor

Which is NOT one of the Five Ps?

Perfusion

“Powers” refers to:

Uterine contractions and pushing

The maternal pelvis and soft tissues represent which labor factor?

Passageway

Which pelvic shape is most favorable for vaginal delivery?

Gynecoid

Which pelvic shape is least favorable for vaginal birth?

Android

Effacement refers to:

Cervical thinning

Largest and least compressible fetal structure:

Head

Sutures allow:

Molding of fetal skull

Fontanels help determine:

Fetal position

Most common fetal presentation:

Vertex (cephalic)

Fetal attitude refers to:

Relationship of fetal parts to one another

Which fetal lie is normal?

Longitudinal

A fetus with buttocks presenting is in:

Breech presentation

Engagement occurs when presenting part reaches:

0 station

Positive station means:

Descending below ischial spines

First cardinal movement of labor:

Descent

Internal rotation allows:

Passage through pelvis

Frequency measures:

Beginning of one contraction to next

Duration refers to:

Beginning to end of one contraction

Intensity evaluates:

Strength of contraction

First stage begins wit

True labor contractions

First stage ends at:

Complete dilation (10 cm)

Second stage extends from:

10 cm → birth

Third stage consists of:

Placental delivery

Fourth stage lasts approximately:

1–4 hours postpartum

Sign of placental separation:

Uterus becomes globular

Another sign of placental separation:

Sudden trickle of blood

Expected maternal physiologic response during labor:

Increased BP during contractions

Expected fetal physiologic response during labor:

Mild periodic FHR accelerations/decelerations