🔴 First Stage of Labour
DME 111: Physiology & Management
- Physiology: Contractions, Cervical dilatation, Descent
- Management: Assessment, Vaginal Examination, Partograph
- Maternal & Fetal Monitoring
First stage of labour is the period from the onset of true labour until the cervix reaches full dilatation (10cm).
Duration: Primipara 8-12 hours, Multipara 6-8 hours (but highly variable!)
Latent Phase (0-4cm):
• Long, variable duration
• Able to talk/walk
• Thin cervix effacing
• Early, irregular contractions
• Normal to last 8 hours
• Teach patience - don't rush!
Active Phase (4-10cm):
• Alert line starts here!
• Cervix dilates 1cm/hour (primip)
• Transfer if slow progress
• Increased contraction intensity
• Vaginal exam every 4 hours
• Epidural often requested
• Labour pains stronger
• Baby's head descends
• Oxytocin receptors peak
• Uterus contracts regularly
• Rupture of membranes often occurs
- Frequency: Every 2-3 minutes in active phase
- Duration: 45-60 seconds each
- Intensity: Strong enough to cause cervical change
- Resting tone: <10 mmHg between contractions
- Peak pressure: 50-80 mmHg in active phase
Dilatation: Opening from 0cm → 10cm
Ineffacement: Shortening from 2cm length → paper-thin
Reconsistency: Softening (firm → soft → stretchy)
Elevation: Moves from posterior → anterior → mid-position
Channel formation: Cervical canal opens completely
Timing: Follows predictable pattern in active phase
Integration: Coordinated with contractions
Opening: End result = 10cm (full dilation)
Normal progress = 1cm/hour for primip, 1.5cm/hour for multip
| Station | Definition | Active Labour? | Management |
|---|---|---|---|
| -3 | Head floating, above inlet | No/Early latent | Observe, ambulate |
| -2 | Head at inlet | Latent phase | Encourage movement |
| -1 | Head in pelvis | Early active | Monitor progress |
| 0 | Head at ischial spines | Active phase | Start partograph! |
| +1 | Head below spines | Active phase | Good descent |
| +2 | Head at perineum | Late active | Prepare for 2nd stage |
| +3 | Head visible at introitus | Second stage imminent | Get delivery set ready! |
Website: www.midwivesrevisionuganda.com
Assess contractions: Frequency, duration, intensity
Determine stage: VE to confirm cervical dilation
Measure vitals: BP, pulse, temperature, respiration
Inspect abdomen: Fundal height, lie, presentation, engagement
Test FHR: Baseline rate, variability, decelerations
Evaluate danger signs: Bleeding, fever, fetal distress
Vulva check for show, ruptured membranes
Encourage to pass urine
Review ANC card & birth plan
Yield to problems - address any concerns
Make comfortable (ambulate if early labor)
Offer fluids & light food (if allowed)
Teach about labor process
Hydration: Start IV if needed
Explain all procedures
Record findings on partograph (if ≥4cm)
Indications: Confirm onset, assess progress, detect problems
Frequency:
- Latent phase: Every 4 hours
- Active phase: Every 4 hours (or more if concern)
- Before interventions (oxytocin, ARM)
PASSAGE: Pelvis adequacy (diagonal conjugate, ischial spines)
• Is pelvis adequate for baby's head? (clinical pelvimetry)
• Assess mid-pelvis (spines prominence), outlet
PASSENGER: Fetal presentation, position, size
• Presentation: Cephalic (vertex, face), Breech, Shoulder
• Position: OA, OP, OT (for vertex)
• Size: Estimated fetal weight, moulding present?
POWER: Contractions quality, uterine tone
• Palpate fundus during VE - strength, duration, resting tone
POSITION: Cervical position & station
• Cervix: Posterior/Anterior/Mid-position
• Station: -3 to +3
PSYCHE: Mother's condition & cooperation
• Pain level, anxiety, fatigue, hydration status
- Start: When cervix reaches 4cm (active phase)
- Plot: Cervical dilation every 4 hours (or after VE)
- Plot: Descent (stations) every 4 hours
- Record: FHR every 30 minutes, BP every 4 hours
- Record: Contractions frequency every 30 minutes
POWER inadequate: Poor contractions (inefficient uterine action)
→ Check: Frequency <3/10min, intensity weak, resting tone high
→ Management: Oxytocin augmentation (hospital only!)
PASSENGER too big: Large baby, malposition, hydrocephalus
→ Check: Moulding 2-3+, caput formation, poor descent
→ Management: CS if CPD diagnosed
PASSAGE too small: Contracted pelvis, soft tissue obstruction
→ Check: Prominent ischial spines, narrow subpubic angle
→ Management: CS for cephalopelvic disproportion (CPD)
Website: www.nursesrevisionuganda.com
| Parameter | Frequency | Normal Range | Abnormal Action |
|---|---|---|---|
| Blood Pressure | Every 4 hours | <140/90 mmHg | ≥140/90 = PIH protocol |
| Pulse | Every 4 hours | 80-100 bpm | >100 = dehydration/sepsis |
| Temperature | Every 4 hours | <37.5°C | ≥38°C = infection screen |
| Urine Output | Every 4 hours | >30ml/hour | <30ml/hour = dehydration |
| Pain Level | Continuous | Tolerable | Severe = assess for obstruction |
| Emotional State | Continuous | Coping | Anxious = provide support |
- Frequency: Every 30 minutes in active phase
- Method: Pinard stethoscope or Doppler ultrasound
- Normal: 120-160 beats/minute
- Assess: Baseline rate, variability, decelerations
Clear = Normal
Light yellow = Acceptable
Early meconium = Greenish tinge
Accumulation = Check for obstruction
Release = Time of ROM matters
Meconium-stained = Fetal distress (especially thick)
Early in labour = Worrisome
Associated with = Hypoxia, infection
Notify senior midwife
Suction baby at birth (prepare for MAS)
- Definition: >20 hours (primip) or >14 hours (multip)
- Causes: False labor, inefficient contractions, anxiety
- Management: Rest (morphine sleep), hydrate, reassess
- Definition: <1cm/hour dilation in active phase
- Diagnosis: Plot on partograph crosses action line
- Management: REFER TO HOSPITAL! (Augmentation or CS)
Oedema of vulva (from pressure)
Bandl's ring (retraction ring)
Severe pain & exhaustion
Thick meconium
Ruptured membranes usually >18 hours
Uterus very tender
Cervix fully dilated but no descent
Transverse lie or malpresentation
Engorged bladder (can't void)
Dead fetus (late sign)
Life-threatening emergency!
Abdominal distension (from urine)
Blood-stained urine (bladder injury)
Ominous signs = REFER IMMEDIATELY!
Urgent CS needed!
Rapid transfer critical!
Website: www.nursesrevisionuganda.com
💪 Second & Third Stage
DME 111: Delivery & Placenta
- 2nd Stage: Physiology, Management, Episiotomy, Mechanism
- 3rd Stage: Physiology, Active Management, Placenta examination
Second stage is from FULL CERVICAL DILATATION (10cm) until the BABY IS BORN.
Diagnosis: VE confirms 10cm + strong urge to push + visible descent
| Mother | Maximum Duration | Action if Exceeded |
|---|---|---|
| Primipara (no epidural) | 2 hours | Assess for cause, consider assisted delivery |
| Primipara (with epidural) | 3 hours | Same assessment |
| Multipara (no epidural) | 1 hour | URGENT review! |
| Multipara (with epidural) | 2 hours | Assess |
- Ferguson's reflex: Descending head stimulates stretch receptors → mother feels urge to push
- Contractions: Every 2-3 minutes, lasting 60-90 seconds
- Bearing down: Mother pushes WITH contractions (not in between!)
- Descent: Head rotates from OT → OA as it passes through levator ani
Stay with her (never leave alone!)
Upright positions encouraged (squatting, kneeling)
Privacy & dignity maintained
Praise her efforts (encouragement!)
Observe descent: Watch perineum bulging
Rest between contractions (conserve energy)
Teach breathing: Exhale while pushing
Timing: Push with contractions (3 pushes per contraction)
Hydration: Offer sips of water
Encourage to empty bladder
Perineal support (warm compresses)
Use of lithotomy if needed for delivery
Stop pushing when head crowns (controlled delivery)
Hands ready for baby (delivery set open!)
- Squatting: Uses gravity, widens pelvic outlet by 1-2cm
- Kneeling/on all fours: Good for back pain, OP positions
- Left lateral/Sims: Less strenuous, good for tired mother
- Lithotomy: For assisted deliveries, episiotomy, primip perineal support
- Semi-recumbent: Common but less efficient than upright
Definition: Surgical incision of perineum to enlarge vaginal outlet
Indications (WHO restrictive approach):
- Fetal distress requiring quick delivery
- Assisted delivery (vacuum, forceps)
- Very tight perineum preventing descent
- Previous FGM with rigid scar tissue
Emergency fetal distress
Previous FGM scar
Instrumental delivery planned
Severe perineal rigidity
Impending severe tear
Obstructed delivery imminent
Tight perineum blocking descent
Otherwise AVOID - it's not routine!
Midline (median) or Mediolateral
Yield better healing if restricted
| Type | Incision | Advantages | Disadvantages | Use in Uganda |
|---|---|---|---|---|
| Median | Midline towards anus | Easy repair, less bleeding | Risk of 3rd/4th degree tear | Not recommended (anal sphincter risk) |
| Mediolateral | 45° angle to midline | Safer, less sphincter damage | More blood loss, harder repair | Standard of care |
Website: www.nursesrevisionuganda.com
Engagement: Biparietal diameter passes pelvic inlet (0 station)
Descent: Head moves down with contractions (-3 → +3)
Mflexion: Chin to chest → smallest diameter (suboccipitobregmatic)
EInternal Rotation: Head rotates from OT → OA at spines
PExtension: Head extends under symphysis → crowning
DExternal Rotation (Restitution): Head aligns with shoulders
Expulsion: Shoulders & body deliver (largest diameter)
WATCH FOR: Moulding (overlapping skull bones) - normal if mild (0-1+)
- Definition: Largest diameter of fetal head visible at introitus
- Action: CONTROLLED DELIVERY to prevent perineal trauma
- Technique:
- Support perineum with warm compress
- Encourage small pushes or "blow" (pant) instead of pushing
- Allow head to emerge slowly between contractions
- Check for nuchal cord (cord around neck)
- Deliver shoulders one at a time (gentle traction)
- Support baby's head, guide downwards then upwards
Third stage is from BABY'S BIRTH until PLACENTA DELIVERY
Duration: 5-30 minutes maximum (ideally <15 minutes)
Normal blood loss: <500ml (vaginal delivery)
Chord lengthening: Umbilical cord lengthens at vulva
Retracted uterus: Fundus rises up, becomes firm & globular
Expulsion of clots: Small gush of blood with clots
Disc not felt: Uterus rises into abdomen (no palpable placenta)
Sudden trickle of blood
Increased fundal height
Gush from vagina
No more cord lengthening
Separation complete!
AMTSL reduces PPH by 60%! 3 components:
Oxytocin: 10 IU IM within 1 minute of baby's birth
→ Causes uterine contraction → placenta separates → vessels constrict
Controlled Cord Traction (CCT):
• Wait for signs of separation (don't pull before!)
• Clamp cord near perineum
• GENTLE traction in direction of birth canal
• Counter-traction on uterus (other hand holds fundus)
• Placenta delivers with minimal effort
Transaction uterine massage:
• Immediately after placenta delivery
• Rub fundus in circular motion
• Keeps uterus contracted
• Prevents atony & bleeding
- When: ONLY if mother declines active management
- What: Watch for separation signs, allow placenta to deliver spontaneously
- Cons: Higher PPH risk, takes longer (up to 60 min)
- UGANDA: Active management is STANDARD - avoid physiological!
1. EXAMINE MATERNAL SURFACE:
Surface: Should be smooth, dark red, complete (no missing cotyledons)
Areas of infarction? (white patches = vascular insufficiency)
Fetal membranes intact? (amnion + chorion)
Edges complete? No tears
2. EXAMINE FETAL SIDE:
Disc shape normal (15-20cm)
Examine vessels: 2 arteries + 1 vein (check for abnormalities)
Look for knotting or thrombosis
Insertion of cord: Central, eccentric, marginal, velamentous?
Vessels should radiate from insertion
Ensure no vasa praevia remnants
3. CHECK MEMBRANES:
Rupture site - how many holes? (check for extra holes = missing twin?)
Yellow color may indicate infection
4. WEIGHT: Normal = 1/6th of baby's weight (500-600g for term)
ABNORMALITIES TO NOTE: Succenturiate lobe, battledore placenta, circumvallate placenta
Website: www.nursesrevisionuganda.com
- NORMAL: <500ml vaginal delivery, <1000ml CS
- Assess: Fundal tone (must be firm!), pad count, pooling
- Action: Rub fundus if soft/boggy (uterine massage)
- Drugs: 2nd dose oxytocin if heavy bleeding
- Examine: Vagina, perineum for tears
- Grades:
- 1st degree: Skin only
- 2nd degree: Involves perineal muscle
- 3rd degree: Involves anal sphincter
- 4th degree: Through rectal mucosa
- Repair: All tears >1st degree require suturing
A) Normal progress
B) Prolonged active phase
C) Obstructed labour ⭐ CORRECT
D) False labour
1. Oxytocin 10 IU IM within 1 minute of birth (2 marks)
2. Controlled Cord Traction after separation signs (1.5 marks)
3. Uterine massage after placenta delivery (1.5 marks)
TIMING: Oxytocin WITHIN 1 MINUTE (1 mark)
Assessment: Active phase, normal progress (2 marks)
Actions:
• Start/review partograph (2 marks)
• Plot cervical dilation (6cm), station (0), contractions (2 marks)
• Continue monitoring - FHR every 30min, BP every 4hr (2 marks)
• Encourage ambulation if comfortable (1 mark)
• Encourage fluids, provide support (1 mark)
b) Mebendazole should be given in the first trimester of pregnancy.
c) A primigravida's cervix should dilate at least 1.5cm per hour in active phase.
a) FALSE - Retained = >30 minutes
b) FALSE - Give after 13 weeks (2nd trimester)
c) FALSE - 1cm/hour for primip, 1.5cm for multip
Separation signs: Cord lengthening, fundal rise, gush of blood, uterus globular (any 4)
First stage monitoring: Cervical dilation, FHR, BP, contractions, temperature, urine output (any 4)
MARKING: 1 mark per correct answer
Website: www.nursesrevisionuganda.com
- Latent 0-4cm: Let mother rest, ambulate, hydrate
- Active 4-10cm: Partograph starts! 1cm/hour expected
- Watch: Alert line = action indicator
- Monitor: FHR 30 min, BP 4hr, contractions continuously
- VE: Every 4 hours, assess 5Ps
- Diagnosis: 10cm + urge to push + descent
- Duration: ≤2hr primip, ≤1hr multip
- Support: Encourage, upright positions, rest between
- Episiotomy: Mediolateral ONLY if essential
- Crowning: Controlled delivery, check for nuchal cord
- AMTSL: Oxytocin within 1 min + CCT + massage
- Placenta: Examine completeness, weight, vessels
- PPH prevention: Rub fundus, monitor bleeding
- Documentation: Time, blood loss, placenta status
Stage 1: Cervix opens (0 → 10cm)
Stage 2: Baby born (push to prize)
Stage 3: Plac expelled (ocin prevents bleed)
Complications = Prolonged, Obstructed, PPH
Be vigilant, monitor, act fast
Prevent death with AMTSL
REMEMBER: THE 4 HOUR RULE (action line) AND THE 1 MINUTE RULE (ocin)!
Website: www.nursesrevisionuganda.com
