LABOR OBG SYN. 15

πŸ“šπŸ©Ί Labor

πŸ“˜ Highly Important for GNM/BSc Nursing, NHM, AIIMS, NORCET, GPSC & Community Health Nursing Exams


βœ…  Introduction / Definition

  • Labor is the physiological process by which the fetus, placenta, and membranes are expelled from the uterus through the birth canal.
  • It is typically accompanied by regular uterine contractions, cervical dilatation, and effacement.
  • Labor generally occurs between 37 to 42 weeks of gestation.

βœ… β€œLabor is a series of coordinated, involuntary uterine contractions leading to the progressive effacement and dilatation of the cervix, culminating in the birth of the baby and placenta.”


πŸ“šπŸ©Ί Difference Between True Labor Pain and False Labor Pain (Braxton Hicks Contractions)

πŸ“˜ Highly Important for GNM/BSc Nursing, NHM, AIIMS, NORCET, GPSC & Community Health Nursing Exams


βœ… I. Introduction / Definition

  • True Labor Pain:
    • Indicates the onset of actual labor leading to progressive cervical dilation and delivery.
    • Associated with regular, increasing uterine contractions.
  • False Labor Pain (Braxton Hicks Contractions):
    • Irregular, non-progressive uterine contractions that do not lead to cervical dilation.
    • Often called β€œpractice contractions” and are common in late pregnancy.

πŸ“– II. Point-Wise Differences Between True and False Labor Pain

FeatureTrue Labor PainFalse Labor Pain
1. Timing of ContractionsRegular, rhythmic intervals (every 5–10 minutes).Irregular, infrequent contractions.
2. Duration and IntensityIncreases progressively in duration and intensity.Remain the same or diminish over time.
3. Pain LocationStarts in the lower back and radiates to the abdomen.Confined to the lower abdomen or groin.
4. Effect of ActivityIntensifies with walking or movement.Subsides with rest or change in position.
5. Cervical ChangesProgressive effacement and dilation of the cervix.No cervical changes.
6. Show/Bloody DischargeMay be present.Not present.
7. Membrane StatusMay lead to rupture of membranes (ROM).Membranes remain intact.
8. OutcomeLeads to delivery of the baby.Does not lead to delivery.

πŸ“š Golden One-Liners for Quick Revision:

  • True labor pains are regular, progressive, and associated with cervical changes.
  • False labor pains are irregular, mild, and relieved by rest.
  • Braxton Hicks contractions are common after 28 weeks of gestation.
  • True labor leads to the delivery of the baby; false labor does not.

βœ… Top 5 MCQs for Practice

  1. Which of the following is a key feature of true labor pain?
    πŸ…°οΈ Pain relieved by rest
    πŸ…±οΈ Irregular contractions
    βœ… πŸ…²οΈ Progressive cervical dilation
    πŸ…³οΈ Pain limited to the abdomen
  2. What is another name for false labor pains?
    πŸ…°οΈ Lightening
    βœ… πŸ…±οΈ Braxton Hicks Contractions
    πŸ…²οΈ Stationary Contractions
    πŸ…³οΈ Afterpains
  3. Where does true labor pain typically begin?
    πŸ…°οΈ Lower abdomen
    βœ… πŸ…±οΈ Lower back radiating to the abdomen
    πŸ…²οΈ Upper abdomen
    πŸ…³οΈ Chest
  4. Which of the following is NOT a feature of true labor?
    πŸ…°οΈ Cervical dilation
    βœ… πŸ…±οΈ Pain subsides with rest
    πŸ…²οΈ Membrane rupture possible
    πŸ…³οΈ Regular contractions
  5. False labor pain typically:
    πŸ…°οΈ Leads to delivery
    πŸ…±οΈ Increases in intensity and duration
    βœ… πŸ…²οΈ Is relieved by rest and position change
    πŸ…³οΈ Causes cervical effacement

πŸ“šπŸ©Ί Mechanism of Labor

πŸ“˜ Highly Important for GNM/BSc Nursing, NHM, AIIMS, NORCET, GPSC & Community Health Nursing Exams


βœ… I. Introduction / Definition

  • The mechanism of labor refers to the series of passive movements that the fetus undergoes to successfully pass through the birth canal during vaginal delivery.
  • These movements allow the fetal head to adapt to the maternal pelvis for safe expulsion.

βœ… β€œMechanism of labor is the sequence of positional changes and adjustments made by the fetus during its passage through the birth canal.”


πŸ“– II. Cardinal Movements of Labor (In Sequential Order)

🟒 1. Engagement

  • The widest transverse diameter of the fetal head (usually biparietal diameter – 9.5 cm) enters the pelvic inlet.
  • Occurs before labor in primigravida and during labor in multigravida.

🟒 2. Descent

  • Downward movement of the fetal head through the maternal pelvis.
  • Occurs throughout labor but most rapidly in the second stage.

🟒 3. Flexion

  • The fetal chin moves toward the chest, allowing the smallest head diameter (suboccipitobregmatic – 9.5 cm) to present.
  • Facilitates easier passage through the birth canal.

🟒 4. Internal Rotation

  • The fetal head rotates to align with the maternal pelvis (usually rotates from transverse to anterior position).
  • Occurs at the level of the ischial spines.

🟒 5. Extension

  • As the head reaches the vulva, it extends to pass through the birth canal.
  • Occurs at the perineum; the head is born by extension.

🟒 6. Restitution

  • After the head is born, it realigns with the shoulders (external rotation of the head to match the position of the shoulders).

🟒 7. External Rotation

  • The shoulders rotate to the anteroposterior diameter of the pelvis, aligning for delivery.

🟒 8. Expulsion

  • The anterior shoulder slips under the pubic arch, followed by the posterior shoulder and rest of the body.
  • Marks the end of the second stage of labor.

πŸ“– III. Clinical Significance of Mechanism of Labor

  • Helps anticipate and manage normal and abnormal labor progress.
  • Important for identifying malpresentations and malpositions.
  • Aids in deciding when interventions like episiotomy or assisted delivery (forceps/vacuum) are needed.

πŸ“– IV. Nursing Responsibilities

  • Monitor fetal position and progress using Leopold’s Maneuvers.
  • Observe for signs of delayed labor or fetal distress.
  • Assist the obstetrician in managing malpresentations.
  • Provide emotional and physical support to the mother throughout labor.
  • Prepare for emergency interventions if abnormal mechanisms are observed.

πŸ“š Golden One-Liners for Quick Revision:

  • Engagement involves the passage of the biparietal diameter through the pelvic inlet.
  • Flexion reduces the presenting diameter to suboccipitobregmatic (9.5 cm).
  • Internal rotation aligns the fetal head with the maternal pelvis.
  • The head is delivered by extension, and shoulders by lateral flexion.
  • Malpositions often interfere with the normal mechanism of labor.

βœ… Top 5 MCQs for Practice

  1. Which is the first movement in the mechanism of labor?
    πŸ…°οΈ Flexion
    πŸ…±οΈ Descent
    βœ… πŸ…²οΈ Engagement
    πŸ…³οΈ Extension
  2. The fetal head is delivered by which movement?
    πŸ…°οΈ Flexion
    βœ… πŸ…±οΈ Extension
    πŸ…²οΈ Restitution
    πŸ…³οΈ Internal Rotation
  3. Restitution refers to:
    πŸ…°οΈ The descent of the fetal head.
    πŸ…±οΈ Flexion of the fetal head.
    βœ… πŸ…²οΈ Realignment of the fetal head with the shoulders after birth.
    πŸ…³οΈ Rotation of the shoulders in the pelvis.
  4. Which diameter of the fetal head is involved during flexion?
    πŸ…°οΈ Occipitofrontal
    πŸ…±οΈ Submentobregmatic
    βœ… πŸ…²οΈ Suboccipitobregmatic
    πŸ…³οΈ Mentovertical
  5. Which movement is responsible for the alignment of the shoulders in the pelvis?
    πŸ…°οΈ Restitution
    βœ… πŸ…±οΈ External Rotation
    πŸ…²οΈ Internal Rotation
    πŸ…³οΈ Flexion

πŸ“šπŸ©Ί Stages of Labor

πŸ“˜ Highly Important for GNM/BSc Nursing, NHM, AIIMS, NORCET, GPSC & Community Health Nursing Exams


βœ… I. Introduction / Definition

  • Labor is the physiological process by which the fetus, placenta, and membranes are expelled from the uterus through the birth canal.
  • It typically begins between 37 to 42 weeks of gestation and involves regular uterine contractions, cervical dilatation, and effacement.

βœ… β€œLabor is a sequence of events that results in the expulsion of the fetus and placenta from the uterus at term.”


πŸ“– II. Stages of Labor

🟒 1. First Stage of Labor (Stage of Dilatation)

  • Begins with the onset of true labor pains and ends with full cervical dilatation (10 cm).
  • Duration:
    • Primigravida: 12–16 hours.
    • Multigravida: 6–8 hours.

Phases of First Stage:

  • Latent Phase:
    • Cervical dilatation: 0–4 cm.
    • Mild, irregular contractions.
    • Duration: 6–8 hours.
  • Active Phase:
    • Cervical dilatation: 4–7 cm.
    • Strong, regular contractions every 3–5 minutes.
    • Duration: 4–6 hours.
  • Transition Phase:
    • Cervical dilatation: 7–10 cm.
    • Intense, frequent contractions every 2–3 minutes.
    • Duration: 0.5–2 hours.

🟒 2. Second Stage of Labor (Stage of Expulsion)

  • Begins with full cervical dilatation (10 cm) and ends with the delivery of the baby.
  • Duration:
    • Primigravida: 30 minutes to 2 hours.
    • Multigravida: 15–30 minutes.

Events:

  • Strong uterine contractions.
  • Descent and birth of the baby.
  • Active maternal pushing efforts.

🟒 3. Third Stage of Labor (Placental Stage)

  • Begins immediately after the delivery of the baby and ends with the expulsion of the placenta and membranes.
  • Duration: 5–30 minutes.

Methods of Placental Expulsion:

  • Schultze Method: Central separation; placenta expelled fetal side first.
  • Duncan Method: Marginal separation; maternal side presents first.

🟒 4. Fourth Stage of Labor (Observation Stage)

  • First 1–2 hours after the delivery of the placenta.
  • Critical period for monitoring the mother for hemorrhage, uterine contraction, and vital signs stabilization.

πŸ“– III. Clinical Significance

  • Accurate identification of each stage ensures timely interventions.
  • Helps prevent complications like postpartum hemorrhage, prolonged labor, and fetal distress.
  • Critical for determining when to provide emotional support and analgesia.

πŸ“– IV. Nursing Responsibilities During Each Stage

  • First Stage:
    • Monitor uterine contractions and fetal heart rate.
    • Encourage relaxation techniques and provide pain relief.
    • Ensure bladder is emptied regularly.
  • Second Stage:
    • Assist with positioning for effective pushing.
    • Prepare delivery equipment and assist during birth.
    • Provide emotional reassurance.
  • Third Stage:
    • Observe for signs of placental separation.
    • Administer oxytocin to prevent hemorrhage.
    • Inspect the placenta for completeness.
  • Fourth Stage:
    • Monitor mother’s vital signs and uterine firmness.
    • Check vaginal bleeding (lochia).
    • Encourage bonding and initiation of breastfeeding.

πŸ“š Golden One-Liners for Quick Revision:

  • The cervix dilates 0–10 cm during the first stage of labor.
  • Second stage ends with the birth of the baby.
  • The third stage lasts until the placenta is delivered.
  • The fourth stage is critical for monitoring postpartum hemorrhage.
  • Schultze method involves central placental separation; Duncan method involves marginal separation.

βœ… Top 5 MCQs for Practice

  1. Which stage of labor ends with the delivery of the placenta?
    πŸ…°οΈ First Stage
    πŸ…±οΈ Second Stage
    βœ… πŸ…²οΈ Third Stage
    πŸ…³οΈ Fourth Stage
  2. What is the duration of the second stage of labor in a primigravida woman?
    πŸ…°οΈ 1–3 hours
    βœ… πŸ…±οΈ 30 minutes to 2 hours
    πŸ…²οΈ 4–6 hours
    πŸ…³οΈ Less than 15 minutes
  3. Which method of placental separation presents the fetal side first?
    πŸ…°οΈ Duncan Method
    βœ… πŸ…±οΈ Schultze Method
    πŸ…²οΈ McRoberts Method
    πŸ…³οΈ Brandt-Andrews Method
  4. The latent phase of the first stage of labor involves cervical dilatation up to:
    πŸ…°οΈ 2 cm
    πŸ…±οΈ 3 cm
    βœ… πŸ…²οΈ 4 cm
    πŸ…³οΈ 6 cm
  5. During which stage of labor is postpartum hemorrhage most likely to occur?
    πŸ…°οΈ First Stage
    πŸ…±οΈ Second Stage
    πŸ…²οΈ Third Stage
    βœ… πŸ…³οΈ Fourth Stage

πŸ“šπŸ©Ί Management of Labor

πŸ“˜ Highly Important for GNM/BSc Nursing, NHM, AIIMS, NORCET, GPSC & Community Health Nursing Exams


βœ… I. Introduction / Definition

  • Management of labor involves a series of clinical and supportive interventions provided to the mother during the stages of labor to ensure safe delivery for both the mother and the baby.
  • The goal is to prevent maternal and neonatal complications while promoting natural and healthy childbirth.

βœ… β€œLabor management is the systematic monitoring and care of a woman in labor to ensure safe delivery and prevent complications.”


πŸ“– II. General Principles of Labor Management

  • Ensure psychological support and comfort for the mother.
  • Monitor maternal vital signs and fetal well-being.
  • Maintain strict aseptic techniques to prevent infection.
  • Early identification and management of complications like fetal distress, prolonged labor, or hemorrhage.
  • Encourage hydration, nutrition, and bladder emptying.

πŸ“– III. Stage-Wise Management of Labor

🟒 1. Management During First Stage (Dilatation Stage)

  • Admit the mother and assess using Partograph.
  • Monitor uterine contractions every 30 minutes.
  • Check fetal heart rate every 15–30 minutes.
  • Assess cervical dilatation and effacement periodically.
  • Encourage deep breathing, relaxation, and ambulation if no contraindications.
  • Ensure bladder is emptied every 2 hours.
  • Provide pain relief if needed (e.g., analgesics, epidural anesthesia).

🟒 2. Management During Second Stage (Expulsion Stage)

  • Assist the mother into a comfortable birthing position (lithotomy or squatting).
  • Encourage effective pushing during contractions.
  • Maintain strict aseptic techniques during delivery.
  • Support the perineum to prevent tears (perineal massage).
  • Perform episiotomy if indicated.
  • Suction the baby’s mouth and nose after delivery.
  • Clamp and cut the umbilical cord following delayed clamping if applicable.

🟒 3. Management During Third Stage (Placental Stage)

  • Administer uterotonic drugs (e.g., Oxytocin 10 IU IM) immediately after delivery of the baby (Active Management of Third Stage of Labor – AMTSL).
  • Observe for signs of placental separation.
  • Facilitate gentle controlled cord traction (Brandt-Andrews maneuver).
  • Inspect the placenta for completeness after expulsion.
  • Monitor for signs of postpartum hemorrhage.

🟒 4. Management During Fourth Stage (Observation Stage)

  • Observe the mother for at least 2 hours post-delivery for signs of bleeding and uterine contraction.
  • Monitor maternal vital signs every 15 minutes for the first hour.
  • Encourage early initiation of breastfeeding.
  • Promote bonding between mother and baby.
  • Ensure bladder emptying and provide perineal hygiene.

πŸ“– IV. Nursing Responsibilities in Labor Management

  • Continuous emotional and physical support.
  • Regularly monitor fetal heart rate and maternal vitals.
  • Assist in maintaining maternal hydration and nutrition.
  • Prepare for emergency interventions like cesarean section if required.
  • Educate the mother on breathing exercises and effective pushing techniques.
  • Ensure safe and hygienic delivery practices.

πŸ“š Golden One-Liners for Quick Revision:

  • Use of the Partograph helps monitor labor progress.
  • Active Management of Third Stage of Labor (AMTSL) prevents postpartum hemorrhage.
  • Oxytocin is the drug of choice to manage the third stage.
  • Continuous fetal monitoring helps identify early signs of distress.
  • Breastfeeding should be initiated within the first hour after birth.

βœ… Top 5 MCQs for Practice

  1. Which drug is preferred in Active Management of Third Stage of Labor (AMTSL)?
    πŸ…°οΈ Methylergometrine
    βœ… πŸ…±οΈ Oxytocin
    πŸ…²οΈ Misoprostol
    πŸ…³οΈ Carboprost
  2. What is the purpose of using a Partograph?
    πŸ…°οΈ To monitor postpartum bleeding
    πŸ…±οΈ To assess newborn APGAR score
    βœ… πŸ…²οΈ To monitor labor progress
    πŸ…³οΈ To assess maternal nutrition
  3. Which position is ideal for delivery during the second stage of labor?
    πŸ…°οΈ Supine
    πŸ…±οΈ Prone
    βœ… πŸ…²οΈ Lithotomy
    πŸ…³οΈ Trendelenburg
  4. How often should maternal vital signs be monitored during the fourth stage of labor?
    πŸ…°οΈ Every 5 minutes
    πŸ…±οΈ Every 10 minutes
    βœ… πŸ…²οΈ Every 15 minutes
    πŸ…³οΈ Every 30 minutes
  5. Which of the following is the best immediate nursing action after placental expulsion?
    πŸ…°οΈ Provide oral fluids
    πŸ…±οΈ Encourage ambulation
    βœ… πŸ…²οΈ Assess uterine contraction and bleeding
    πŸ…³οΈ Give iron supplements

πŸ“šπŸ©Ί Partograph

πŸ“˜ Highly Important for GNM/BSc Nursing, NHM, AIIMS, NORCET, GPSC & Community Health Nursing Exams


βœ… I. Introduction / Definition

  • A Partograph is a graphical tool used to monitor the progress of labor and assess maternal and fetal well-being during childbirth.
  • It helps in the early identification of abnormal labor, ensuring timely intervention to prevent complications.

βœ… β€œThe Partograph is a simple, effective, and essential tool for monitoring the progress of labor and preventing prolonged and obstructed labor.”


πŸ“– II. Purpose of Using a Partograph

  • To monitor the progress of labor systematically.
  • To assess fetal condition and detect fetal distress early.
  • To evaluate maternal condition and prevent complications.
  • To identify cases requiring timely referral or interventions.
  • To reduce maternal and neonatal morbidity and mortality.

πŸ“– III. Components of the Partograph

🟒 1. Fetal Condition Monitoring

  • Fetal Heart Rate (FHR): Recorded every 30 minutes.
  • Amniotic Fluid (Membranes): Intact or ruptured, color of liquor (clear, meconium-stained, blood-stained).
  • Molding of Fetal Skull Bones: Assessed during vaginal examinations.

🟒 2. Progress of Labor

  • Cervical Dilatation: Plotted against time on the graph.
  • Descent of the Fetal Head: Assessed using abdominal palpation.
  • Alert Line: Indicates expected progress of labor (1 cm dilatation per hour).
  • Action Line: Located 4 hours to the right of the alert line; crossing this line indicates need for clinical action.

🟒 3. Maternal Condition

  • Pulse: Recorded every 30 minutes.
  • Blood Pressure (BP): Recorded every 4 hours.
  • Temperature: Recorded every 4 hours.
  • Urine Output: Monitored for volume, protein, and ketones.
  • Contractions: Frequency, duration, and intensity recorded every 30 minutes.

πŸ“– IV. How to Use a Partograph (Stepwise)

  1. Start plotting when the woman is in active labor (cervical dilatation β‰₯ 4 cm).
  2. Record maternal vitals and fetal parameters regularly.
  3. Plot cervical dilatation against time to observe labor progress.
  4. Take appropriate action if the plot crosses the alert or action lines.
  5. Ensure timely referrals or interventions when necessary.

πŸ“š Golden One-Liners for Quick Revision:

  • Partograph helps prevent prolonged and obstructed labor.
  • The alert line represents normal labor progress.
  • Crossing the action line requires immediate intervention.
  • Cervical dilatation is ideally 1 cm per hour during active labor.
  • Partograph is started at 4 cm cervical dilatation.

βœ… Top 5 MCQs for Practice

  1. At what cervical dilatation should the partograph be started?
    πŸ…°οΈ 2 cm
    πŸ…±οΈ 3 cm
    βœ… πŸ…²οΈ 4 cm
    πŸ…³οΈ 5 cm
  2. What does crossing the action line on the partograph indicate?
    πŸ…°οΈ Normal labor progress
    βœ… πŸ…±οΈ Immediate need for intervention
    πŸ…²οΈ Start fetal monitoring
    πŸ…³οΈ Prepare for discharge
  3. How often should fetal heart rate be recorded on the partograph?
    πŸ…°οΈ Every hour
    πŸ…±οΈ Every 15 minutes
    βœ… πŸ…²οΈ Every 30 minutes
    πŸ…³οΈ Every 2 hours
  4. Which parameter is plotted to assess labor progress?
    πŸ…°οΈ Maternal BP
    βœ… πŸ…±οΈ Cervical dilatation
    πŸ…²οΈ Pulse rate
    πŸ…³οΈ Uterine tone
  5. Which of the following is NOT a component of the partograph?
    πŸ…°οΈ Fetal heart rate
    πŸ…±οΈ Maternal BP
    πŸ…²οΈ Cervical dilatation
    βœ… πŸ…³οΈ Apgar Score
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