Postdates

definition of a term pregnancy

A pregnancy spanning from 37 weeks up until 41 weeks.

definition of 'post dates' pregnancy

A pregnancy continuing after 41 weeks based on the estimated due date.

difference between 'prolonged' and 'post mature' pregnancy?

Prolonged refers to calendar gestation (>42 weeks), while post mature refers to placental aging and fetal condition.

post-maturity syndrome

physical features identified in the neonate at birth (e.g. dry skin, long nails)

primary fetal risks associated with post-date pregnancies

Stillbirth, macrosomia, intrapartum asphyxia (lack of O2), meconium aspiration, and neonatal death.

macrosomia

condition where a newborn weighs significantly more than average.

meconium aspiration syndrome

life-threatening breathing disorder where newborn inhales their first stool mixed w/ amniotic fluid into the lungs.

three maternal complications associated with post-date pregnancies

Labour dystocia (slow labour), genital tract trauma, and increased risk of caesarean section.

induction of labour (IOL) compared to expectant management regarding perinatal mortality

IOL is associated with fewer perinatal deaths than expectant management.

benefits of IOL at 41 weeks or greater compared to expectant management

Fewer caesarean sections, fewer NICU admissions, fewer babies with low Apgar scores, fewer cases of meconium aspiration

core principle of shared decision-making in IOL

Collaboration between women/whānau and clinicians based on full information and individualised care.

midwife's role in establishing an accurate EDD

Using 'sure dates' and/or dating ultrasound scans.

membrane sweep

A vaginal examination where a finger is inserted into the cervix to separate the membranes from the lower uterine segment.

potential risks of a membrane sweep

Light bleeding and cramps.

What should midwives monitor regarding fetal wellbeing in post-date pregnancies?

Normal fetal movement patterns and prompt reporting of any concerns.

four natural methods for inducing labour

Dates, exercise, intercourse, and nipple stimulation.

primary goal of balancing interventions in IOL

Seeking a safe outcome while respecting the woman's planned birth experience.

definition of a prolonged pregnancy

A pregnancy with a duration greater than 42 weeks.

definition of an overdue pregnancy

A pregnancy experienced after 40 weeks by the estimated due date.

importantance of acknowledgign trauma and grief in the context of IOL

To provide holistic, supportive care that respects the emotional impact of birth interventions.

approximate frequency of pregnancies lasting longer than 41 weeks

Approximately 1 in 4 pregnancies.