Comprehensive Obstetrics and Labor Process: Key Concepts and Interventions

What are the four components of the birth process?

Powers (uterine contractions), Passage (mother's bony pelvis and soft tissues), Passengers (fetus and placenta), Psyche (the woman's entire being).

What are Braxton Hicks contractions?

False labor contractions that can occur before true labor begins.

What is the significance of lightening in labor?

It indicates the descent of the fetus into the pelvis, often accompanied by increased vaginal drainage.

What are the signs of impending labor?

Braxton Hicks contractions, lightening, cervical changes, bloody show, rupture of membranes, energy spurts, and weight loss.

What is the purpose of administering Oxytocin during labor?

To stimulate contractions and induce labor.

What should be monitored for when administering Oxytocin?

Signs of fetal compromise, such as late decelerations and loss of variability.

What is the normal baseline fetal heart rate (FHR)?

110-160 beats per minute.

What does variability in fetal heart rate indicate?

An intact central nervous system and cardiac status of the fetus.

What are accelerations in fetal heart rate?

Increases from baseline heart rate, which are considered a good sign.

What are decelerations in fetal heart rate?

Decreases from baseline heart rate, which can be expected or concerning.

What is uterine tachysystole?

A condition where contractions do not allow the uterus to relax, potentially compromising fetal oxygenation.

What are the four stages of labor?

First stage (dilation), Second stage (expulsion of fetus), Third stage (expulsion of placenta), Fourth stage (recovery).

What is the duration of a contraction?

The time from the beginning of a contraction to the end of the same contraction.

What is the frequency of contractions?

The time from the beginning of one contraction to the beginning of the next contraction.

What is the intensity of contractions?

How strong the contraction is.

What is the interval in terms of contractions?

The amount of time the uterus relaxes between contractions.

What is effleurage?

A nonpharmacological technique of skin stimulation where the woman strokes her abdomen in a circular motion.

What is sacral pressure?

A technique that involves firm pressure against the lower back to relieve pain during labor.

What are some signs of hyperventilation during labor?

Dizziness, tingling of hands and feet, cramps, numbness around the mouth, and blurring of vision.

How can hyperventilation be corrected?

Breathe slowly, breathe into cupped hands, place a moist washcloth over mouth and nose, or hold breath before exhaling.

What are narcotics used for in pharmacological pain management?

Narcotics are used to manage pain.

Name a common narcotic medication.

Fentanyl (Sublimaze)

What is the purpose of nitrous oxide in anesthesia?

Nitrous oxide is used as an inhaled anesthetic.

What is local infiltration in anesthesia?

Injection of a local anesthetic drug (like lidocaine) into the perineum.

What is a pudendal block?

An injection into the pudendal nerves with a local anesthetic just before birth.

What is an epidural block?

Injection of local anesthetic into the epidural space to block pain impulses.

What are potential complications of an epidural block?

Hypotension and urinary retention.

What is a subarachnoid (spinal) block?

Injection of local anesthetic under the dura and arachnoid membranes.

When is general anesthesia typically used during childbirth?

When regional block is contraindicated or there is not enough time for it.

What is the difference between induction and augmentation of labor?

Induction is the intentional initiation of labor; augmentation is stimulation of contractions after they have begun.

What are some indications for inducing labor?

Gestational hypertension, ruptured membranes, infection, and fetal problems.

What conditions contraindicate labor induction?

Placenta previa, umbilical cord prolapse, and active herpes infection.

What is cervical ripening?

The physical softening of the cervix that leads to effacement and dilation.

What is dinoprostone (Cervidil) used for?

It is a pharmacological method to stimulate contractions via vaginal insertion.

How is misoprostol used in labor induction?

It can be given orally or vaginally and is effective for achieving vaginal delivery.

What is amniotomy?

The artificial rupture of membranes to induce or augment labor.

What are some indications for a cesarean birth?

Abnormal labor, fetal compromise, and maternal conditions like gestational hypertension.

What defines a precipitate birth?

A birth completed in less than 3 hours, often without a healthcare provider present.

What is the purpose of a cervicovaginal test for fetal fibronectin?

To predict preterm labor by detecting fibronectin in vaginal secretions.

What are signs of impending preterm labor?

Uncomfortable contractions, low backache, pelvic pressure, and changes in vaginal discharge.

What is the goal of tocolytic therapy?

To stop uterine contractions and keep the fetus in utero until lung maturity.

What is the drug of choice for tocolytic therapy?

Magnesium sulfate.

What is the recommended duration for continuous IV infusion?

Limit use to fewer than 5-7 days.

What medication can be given subcutaneously to stop uterine contractions?

Terbutaline (Brethine).

What increases the risk of a prolapsed umbilical cord?

If the membranes rupture before the fetal presenting part is fully engaged in the pelvis.

What is the first nursing action when a cord prolapse occurs?

Displace the fetus upward to stop compression against the pelvis.

What are the three types of uterine rupture?

Complete rupture, incomplete rupture, and dehiscence.

What does involution refer to in postpartum care?

Changes that the reproductive organs undergo after birth to return to their pre-pregnancy size.

What is subinvolution?

Failure of the uterus to return to the pre-pregnant state after 6 weeks.

How does the uterine fundus descend postpartum?

It descends about 1 cm (1 finger's width) each day after delivery.

What is lochia?

Vaginal discharge after delivery, composed of endometrial tissue, blood, and lymph.

What are the three stages of lochia?

Lochia rubra (red), lochia serosa (pinkish), and lochia alba (clear or white).

What should be done for a boggy uterus?

It should be massaged until firm to prevent hemorrhage.

What does the acronym BUBBLE stand for in postpartum assessment?

Breast, Uterus, Bladder, Bowel, Lochia, Episiotomy, Emotions.

What are the danger signs a mother should report postpartum?

Fever, persistent lochia rubra or foul odor, bright red bleeding, prolonged afterpains, signs of UTI, calf pain, localized breast tenderness, and pervasive feelings of depression.

What is postpartum hemorrhage defined as?

Blood loss greater than 500 mL after vaginal birth or 1000 mL after cesarean birth.

What is early postpartum hemorrhage?

Bleeding that occurs within 24 hours of birth.

What is late postpartum hemorrhage?

Bleeding that occurs 24 hours to 6 weeks after childbirth.

What should be done to estimate blood loss accurately?

Weigh perineal pads before and after use; 1 g in weight equals about 1 mL of blood lost.

What medications may be given to stimulate uterine contraction?

Oxytocin (Pitocin) and Methylergonovine (Methergine).

What is the REEDA acronym used for?

To assess perineal healing: Redness, Edema, Ecchymosis, Discharge, Approximation.

What does redness with excessive tenderness indicate?

It is more likely to indicate infection.

What are common emotional changes during the transition to motherhood?

Hormonal changes, changes in body image, and psychological acceptance as a mother.

What characterizes postpartum blues?

Mom may feel let down but still finds joy; it is self-limiting.

What is postpartum depression?

A persistent mood of unhappiness that requires reporting to a healthcare provider.

What is postpartum psychosis?

An impaired sense of reality that can be fatal for both mother and infant, requiring emergent treatment.

Effacement

thinning of the cervix

Dilation

Opening of the cervix