North American Registry of Midwives (NARM) Practice Exam

What is the incidence rate of true shoulder dystocia?

1. Less than 5%

2. Less than 1%

3. About 10%

4. Approximately 2%

The correct answer is: Less than 1%

The incidence rate of true shoulder dystocia, which occurs when the baby's shoulder becomes impacted behind the mother's pubic bone during delivery, is reported to be less than 1% of all deliveries. This relatively low rate is significant in clinical practice because, despite its low frequency, shoulder dystocia can lead to serious complications for both the mother and the baby, necessitating awareness and readiness for management strategies among healthcare providers. In clinical terms, this understanding of shoulder dystocia’s incidence informs midwives and obstetricians about the importance of risk assessment during pregnancy and labor. Knowledge of the likelihood of encountering this condition influences decision-making about delivery practices and potentially guides intervention strategies for cases that may be at higher risk. Other incidence rates provided in the choices, such as about 10% or approximately 2%, do not accurately reflect the established statistics found in obstetric literature. Understanding the correct incidence helps healthcare professionals to prepare for emergencies effectively while also providing reassurance to expectant mothers regarding the statistical unlikelihood of this complication occurring.