Women's Health Flashcards
What are the three main antenatal and birthing care models?
- Public: midwife led care shared with GP or hospital
- Private: obstetrician-led care
- Private: midwife/homebirth
What patients attend a birth centre for care?
Low-risk pregnancies, transferred for medical reasons e.g. epidural
What percentage of women have a normal vaginal birth?
70-80%
What is the WHOs definition of a normal labour?
Labour is normal when it is spontaneous in onset, low risk at the start and remaining so throughout labour and birth. The baby is born spontaneously and in the vertex position between 37–42 completed weeks of pregnancy. After birth woman and baby are in good condition.
What is the relationship between the age of the mother and likelihood of delivering by caesaraen section?
C-sections increase with age - mothers aged 40 years and over are 3 x more likely to deliver by C-section compared with teenage mothers (52% vs 18%).
What adverse maternal perinatal outcomes are associated with young or advanced maternal age?
- Postpartum haemorrhage
- Eclampsia
- Cephalopelvic disproportion
What are the four stages of normal vaginal delivery/birth?
- First stage: 1 - 48 hrs
- Second stage: 5 mins - 2 hrs
At what stage is a women considered to be in the active stage of labour?
Cervix dilation >6cm
What are the two periods of first stage delivery (labour)?
- Early: cervix dilation 0-6cm (at home)
- Established/active: 6-10cm (hospital)
What is the second stage of a normal delivery?
5 minutes - 2 hours: baby being pushed out
What is involved in the second stage of delivery?
Positioning for routine delivery
What should be taken into account when preparing for spontaneous delivery?
- Parity
- Preference for positioning during delivery
- The progress of labour
- Presentation of the fetus
- Any complications of the labour
What do the NICE clinical guidelines suggest for positioning during the second stage of delivery?
- Discourage lying supine or semi-supine
- Encourage guidance by urge to push
- In a position which rapid access is possible if sudden unexpected complications occur
What are the benefits of a water birth?
Water immersion during the first stage of labour reduces the use of epidural/spinal analgesia. Water births are associated with low risks for both the woman and baby when best practice guidelines are followed.
What do the RANZCOG Guidelines state in regards to warm water immersion during labour and birth?
Women who choose to labour immersed in water but with the intent of leaving the water for delivery should be supported. There should be appropriate protocols and arrangements in place to minimise the likelihood and hazards associated with unplanned delivery occurring immersed in water.
If it is anticipated that significant fetal manipulation may be required (twins, breech, shoulder dystocia), what position should the patient be in for delivery?
The lithotomy position: flexion/abduction of the hips (squatting position) to increase the size of the pelvic outlet.
When should episiotomy be considered?
High likelihood of:
- Severe laceration
- Shoulder dystocia
- A requirement to accelerate the birth delivery
- A need to facilitate operative vaginal delivery
- A history of female genital mutilation (FGM)
What are the four degrees of perineal injury?
1st degree: injury to the perineal skin only
2nd degree: injury to the perineum, but not anal sphincter (AS); 3rd degree: injury to the peri and AS (OASIS)
- 3a: Less than 50% of EAS thickness torn
- 3b: More than 50% of EAS thickness torn.
- 3c: Both EAS and IAS involved
4th degree: injury to perineum, AS and rectal mucosa
What are the four degrees of perineal injury?
1st degree: injury to the perineal skin only
2nd degree: injury to the perineum, but not anal sphincter (AS); 3rd degree: injury to the peri and AS (OASIS)
- 3a: Less than 50% of EAS thickness torn
- 3b: More than 50% of EAS thickness torn.
- 3c: Both EAS and IAS involved
4th degree: injury to perineum, AS and rectal mucosa
What are the risk factors associated with women sustaining an obstetric anal sphincter injury?
- Nulliparity (first baby)
- Asian or indian sub-continent ethnicity
- Woman has Female Genital Mutilation (FGM)
- Baby is large in relation to maternal size (> 4kg)
- Previous history of perineal trauma requiring repair
- Previous history of obstetric anal sphincter injury
- Precipitate or faster than expected second stage
- Instrumental birth
- Active second stage longer than 1 hour
- Inappropriate maternal position (e.g. lithotomy position)
- Midline episiotomy or an inadequately angled mediolateral episiotomy which functions like a mid-line