M/B Unit 3 Vocab

Rebound of the fetus when the cervix is tapped during vaginal examination

gradual widening of the cervix in the process of labor

Cervical thinning

Measurement of fetal descent in relation to the ischial spines of the maternal pelvis.

A method of for rapid evaluation of the infant's cardiorespiratory adaptation after birth. Scores are done at 1 and 5 minutes. Assessments are scored 0-2 in 5 areas and the scores are totaled.

Area of edema over the presenting part of the fetus or NB, resulting from pressure against the cervix. Usually called caput.

AROM

Artificial stimulation of uterine contractions that have become ineffective.

Fetal head size that is too large to fit through the maternal pelvis at birth

Hormone produced by the posterior pituitary gland that stimulates uterine contractions and the milk-ejection reflex; also prepared synthetically (pitocin)

Changes from baseline on the EFM; total height from peak FHR to trough FHR over a 1 minute window.

Abnormally small volume of amniotic fluid. <500 ml at term

The contraction and relaxation of the smooth muscles of the uterus that push the fetus down into the pelvis for delivery.

A labor curve to identify whether a woman's cervical dilation is progressing at the expected rate.

Relationship of the long axis of the fetus to the long axis of the mother.

Uterine contractions that are too long or too frequent, have too short a resting interval or have an inadequate relaxation period to allow optimal uretoplacental exchange.

Mixture of cervical mucus and blood from ruptured capillaries in the cervix. Bloody show often precedes labor and increases with cervical dilation.

Maneuvering of fetus externally to flip from breech to head down position.

Uterine contractions that are too short or not frequent enough to push the baby down.

Displacement of the umbilical cord in front of or beside the fetal presenting part. An occult prolapse is one that is suspected on the basis of FHR patterns; the umbilical cord cannot be palpated or seen.

Amniotic fluid that is yellow-brownish from meconium being passed into the amniotic fluid before birth.

The motor neuron has been overstimulated and cannot contract.

Two membranes, the amnion (inner membrane) and the chorion (outer membrane) that together make the bag of water.

Too much amniotic fluid. >2000 ml at term.

Appearance of the fetal scalp or presenting part at the vaginal opening.

Fetal part that first enters the pelvic inlet; the presenting part.

Used to assist the woman in the birth process after becoming exhausted.

Surgical incision of the perineum to enlarge the vaginal opening.

• Decompensation; fetus stops accels
• Acute-cord prolapse, abruption
• Chronic-HTN, DM, post maturity
• Fetal asphyxia results from the absence of exchange of respiratory gases.

Acme of 15 bpm above baseline with duration >15 seconds but <2 minutes.

110-160 bpm

Drop of 15 bpm for >15 seconds but <2 minutes

Difficult or prolonged labor, often associated with abnormal uterine activity and cephalopelvic disproportion.

Newborn scalp edema created by a vacuum extractor.

The time between the end of one contraction and the beginning of the next contraction.