LABOUR Flashcards
4 P’s of slow progress in labour
Power
passage
patient
passanger
explain passage
- issue with soft tissues of birth canal (cervix, vagina, pelvic floor, perineum)
- CPD
mechanisms of labour In Occipito-Anterior or Lateral Cases these are
In Occipito-Anterior or Lateral Cases these are:
- Descent and further flexion of the head.
- Internal rotation of head (to OA)
- Extension and delivery of head
- Restitution and external rotation
- Delivery of anterior and posterior shoulder by lateral flexion
- Delivery of trunk, buttocks and legs
explain power component
adequate contractions = 3-4 strong contractions in 10 minutes.
Powers- Inadequate contractions (dysfunctional labour)
- poor dilatation, effacement, descent of the fetus
- Often inadequate contractions in primigravida
- establish stronger contactions by surgical or manual rupturing membranes and giving augmentaion with IV Oxytocin
- Reassess in 2hrs
- If no further progress deliver by c/s
explain patient component
- Illness
- Full bladder
- Exhaustion
- Mobility
- Positioning
- Companion
explain passenger component
- macrosomia
- Abnormal presentation or position
- Fetal abnormality e.g hydrocephalus
signs of placenta separation
- PV bleeding
- A rise in the fundal height
- fundus becomes globular and firm
- lengthening of the umbilical cord
- traction upwards of the fundus fails to draw the cord with it
mechanisms of labour
- Descent and engagement
- Flexion
- Internal rotation
- Crowning and extension
- Restitution and external rotation
- Lateral flexion: birth of the anterior shoulder followed by the posterior shoulder