Models of intrapartum care — structured SAQ (15 marks)

(a) Counselling the nulliparous woman on home birth (5 marks)

One mark per point. The parity-specific number is the discriminator. ^[1]

• Counsel on planned place of birth, never actual place of birth — the denominator is intention, and counselling on where she ended up biases the answer.^[1]
• Give her the nulliparous numbers from Birthplace in England: for nulliparous women, planned home birth was associated with higher odds of the primary adverse perinatal composite (adjusted odds ratio 1.75, 95% confidence interval 1.07 to 2.86); neither midwifery unit setting showed a significant difference.^[1]
• Tell her about transfer: roughly four in ten nulliparous women planning home birth transfer in labour (36 to 45 per cent), usually for slow progress or analgesia — transfer is common and usually not an emergency.^[1]
• Name the benefit side: planned home birth has fewer interventions (fewer caesareans, instrumental births, epidurals) than an obstetric unit, for nulliparous as well as multiparous women.^[1]
• Respect her informed choice and document the numbers, the eligibility, and the escalation plan; if she is outside low-risk eligibility, the conversation is different and the documentation is critical.^[1][7]

(b) Water immersion — evidence, exclusions, service requirements (4 marks)

One mark each for evidence, exclusions and requirements; the fourth for stating the first-stage versus waterbirth distinction. ^[2]

• Evidence (Cochrane): immersion in the first stage probably makes little or no difference to spontaneous vaginal birth or caesarean, but reduces the use of regional analgesia from about 43 to 39 per cent; the evidence for birth in water (second stage) is insufficient.^[2]
• Exclusion criteria: any deviation from low-risk eligibility, raised maternal temperature, an abnormal fetal heart rate, meconium-stained liquor, bleeding, or any situation needing rapid exit or continuous monitoring.^[2]
• Service requirements: trained staff, written protocols, a rehearsed evacuation drill, telemetry where continuous monitoring is needed, eligibility and exclusion criteria applied, and an annual audit.^[2][6]
• At the birth itself: bring the baby gently to the surface once and keep them there — never pull (cord snapping) and never re-submerge (aspiration).^[2][6]

(c) Alongside versus freestanding midwifery unit (3 marks)

One mark per point. ^[4]

• Alongside midwifery unit (AMU): midwifery-led, on the same site as an obstetric unit — transfer is a corridor, the fastest of the non-OU options; epidural and theatre are minutes away.^[4]
• Freestanding midwifery unit (FMU): midwifery-led, geographically separate — transfer is by ambulance, with the associated duration and planning. A freestanding unit is defined by its transfer plan, not by its building.^[4]
• The Danish matched cohort found that for low-risk women an FMU had fewer interventions than an OU with no perinatal difference — so the FMU is a defensible option for eligible women who accept the transfer time.^[4]

(d) Continuity of carer evidence (3 marks)

One mark per point. ^[3]

• The Cochrane review (15 trials, 17 674 women, high-quality primary evidence) found women receiving midwife-led continuity were less likely to have regional analgesia (average risk ratio 0.85) and had fewer preterm births under 37 weeks and fewer fetal losses before 24 weeks.^[3]
• There was no difference in caesarean birth — say this, because it prevents the overclaim that continuity "reduces caesareans."^[3]
• Treat continuity as an intervention with outcome data, not a staffing preference — it is the model to offer where the unit can resource it.^[3]