Brief introduction - normal labour
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Normal labor is defined as spontaneous onset at term, with a vertex baby and natural termination with minimal assistance and no complications. It involves four stages: first stage is cervical dilation from onset of labor pains until fully dilated; second stage is full dilation until birth; third stage is placental expulsion; and fourth stage is observation. Key factors that cause labor to start include uterine distention, hormones like estrogen and progesterone, and prostaglandins. The document outlines assessment criteria and stages of labor as well as keywords related to the labor mechanism and process.
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Brief introduction - normal labour
- 2. 1) Definition of normal labour 2) Assesment criteria for the same 3) Causes of labour initiation 4) Stages of labour 5) Key words in labour mechanism
- 3. Definition – A series of events that takes place in the genital organs in order to expel the viable products of conception out of the womb through the vagina into the outer world .
- 4. Spontaneous in onset and at term Vertex presentation Without undue prolongation Natural termination with minimal aids Without any complications
- 5. Uterine distention Feto placental cascade Oestrogen Progesteron PG’s Oxytocin
- 6. 1st : onset of true labour pain to full cervical dilatation . 2nd : full cervical dilatation to fetal expulsion 3rd : placental expulsion 4th : observation
- 7. 1st STAGE 2nd STAGE 3rd STAGE PRIMI 12 HRS 2 HRS 15 MIN MULTI 6 HRS 30 MIN 15 MIN
- 8. Engagement Increasing flexion Int. rotation of occiput Crowning Delivery of head by extention Restitution External rotation Delivery of shoulders and trunk by lateral flexion
- 9. Power Passage Passenger
- 10. 1) Pains 2) Dilatation and effacement of cervix 3) Status of membranes 4) Descent of fetus 5) Vaginal signs 6) Maternal signs and foetal effect
- 11. THANK YOU
Editor's Notes
- #6: Cascade – A sequence of successive activation reactions involving enzymes or hormones characterized by a series of amplifications of an initial stimulus.