Question

How might a pubic arch of 85 degrees affect labor?

1) A pubic arch of 85 degrees allows for adequate dilatation and effacement.
2) A pubic arch with an angle less than 90 degrees is ideal for the fetus to pass under it.
3) A pubic arch with an angle less than 90 degrees may impede the fetus from passing under it.
4) A pubic arch of 85 degrees prevents the uterus from producing coordinated, effective contractions

Answer 1

A pubic arch of 85 degrees may impede the fetus from passing under it, making labor more difficult and potentially leading to a longer and more challenging birth process.

Step-by-step explanation:

A pubic arch of 85 degrees may impede the fetus from passing under it. The pubic arch is the angle between the ischial tuberosities, which are the bony prominences on either side of the pelvis. Typically, a pubic arch with an angle less than 90 degrees is considered ideal for the fetus to pass under it easily and without obstruction. However, a pubic arch of 85 degrees is narrower, which can make labor more difficult and potentially lead to a longer and more challenging birth process.