North American Registry of Midwives (NARM) Practice Exam

What percentage of pregnancies labeled postdates are actually postdates?

1. Approximately 10%

2. Approximately 30%

3. Approximately 50%

4. Approximately 70%

The correct answer is: Approximately 30%

The correct percentage of pregnancies labeled as postdates that are truly postdates is around 30%. This figure reflects the discrepancy often seen between estimated due dates based on gestational age and actual delivery dates. In obstetrics, a pregnancy is classified as postdates or "overdue" when it extends beyond 42 weeks of gestation. However, many providers label pregnancies as postdates based on estimated due dates, which can lead to misclassification. The reality is that only about 30% of these labeled pregnancies go beyond the expected date of delivery. Understanding this statistic is crucial for midwives and healthcare providers as it highlights the importance of accurately assessing gestational age and being mindful of the emotional and medical implications of postdate pregnancies. This statistic helps in managing expectations for both the provider and the client, thereby improving care and reducing unnecessary interventions.