Final Answer:
Assist the mother into positions that encourage fetal rotation and descent.
The correct option is B.
Step-by-step explanation:
In cases where the fetus is in the right occiput posterior position, the optimal nursing intervention is to assist the mother into positions that encourage fetal rotation and descent. This approach aims to facilitate the baby's movement through the birth canal and can help alleviate back pain associated with this particular fetal position.
Encouraging the mother to lie on her back (Option A) may not be the most effective strategy in this scenario. The occiput posterior position can be associated with difficulties in descent, and lying on the back might not promote the necessary adjustments for optimal fetal positioning. Instead, encouraging positions that aid rotation and descent, such as hands and knees or side-lying, can enhance the chances of a smoother delivery.
Administering pain medication (Option C) might provide temporary relief for back pain, but it doesn't address the underlying issue of fetal positioning. Immediate cesarean section (Option D) is not typically indicated solely based on the occiput posterior position, especially when the mother is already dilated 8cm. The focus should be on non-invasive measures to facilitate a vaginal delivery while optimizing maternal comfort and fetal well-being.
The correct option is B.