📌 NCLEX Topic: Placental Separation & Expulsion
Description:
Placental separation and expulsion occur during the third stage of labor, which begins immediately after the birth of the baby and ends with the delivery of the placenta.
Key Characteristics of Placental Separation:
1️⃣ Timing:
Expulsion of the placenta typically occurs 5 to 30 minutes after the infant is delivered.
2️⃣ Signs of Placental Separation:
- Sudden gush of blood from the vagina.
- Lengthening of the umbilical cord outside the vaginal opening.
- Change in the shape of the uterus (becomes globular and firm).
- Uterus rises in the abdomen.
3️⃣ Types of Placental Expulsion:
- Schultze Mechanism (“Shiny Side First”): Placenta separates from the center outward, with the fetal side delivered first.
- Duncan Mechanism (“Dirty Side First”): Placenta separates from the edges inward, with the maternal side delivered first.
Nursing Interventions in the Third Stage of Labor:
🚨 Priority: Prevent postpartum hemorrhage and monitor for complications.
- Observe for signs of placental separation.
- Encourage the birthing parent to push gently once separation occurs.
- Administer oxytocin (Pitocin) as prescribed to stimulate uterine contractions and reduce the risk of hemorrhage.
- Assess the placenta for completeness after expulsion to ensure no fragments remain in the uterus.
- Monitor maternal vital signs and bleeding closely.
- Provide emotional support and explain the process to the client.
Complications to Monitor For:
- ⚠️ Retained Placenta:
- Occurs when the placenta does not deliver within 30 minutes.
- May require manual removal or surgical intervention.
- ⚠️ Postpartum Hemorrhage (PPH):
- Caused by incomplete placental expulsion or uterine atony.
- Monitor for excessive bleeding and manage accordingly.
NCLEX Test-Taking Strategy:
- “Sudden gush of blood”
- “Lengthening of the umbilical cord”
- “Globular, firm uterus”
💡 Remember:
- Schultze mechanism = Fetal side first (shiny).
- Duncan mechanism = Maternal side first (dirty).
- Administer oxytocin after delivery to reduce hemorrhage risk.
Summary for NCLEX:
- 🩸 Placental separation and expulsion occur within 5-30 minutes after delivery.
- ✅ Signs: Sudden gush of blood, cord lengthens, uterus becomes firm.
- 🚨 PRIORITY: Monitor for excessive bleeding and ensure complete expulsion of the placenta.
Stages of Labor:
| First Stage | Second Stage | Third Stage | Fourth Stage |
|---|---|---|---|
| Effacement and dilation of cervix Three stages—latent, active, and transition |
Expulsion of fetus Pushing stage Latent phase—”laboring down” Active phase—pushing |
Separation of placenta Expulsion of placenta |
Physical recovery 1-4 hr after expulsion of placenta |
| Birthing parent is talkative and eager in latent phase, becoming tired, restless, and anxious as labor intensifies and contractions become stronger | Birthing parent has intense concentration on pushing with contractions; may fall asleep between contractions | Birthing parent is relieved after birth of newborn; usually very tired | Birthing parent is tired but eager to become acquainted with the newborn |