Correct Answer: C

Rationale: Displacement of the uterus from the midline is often a sign of bladder distention. A full bladder can prevent the uterus from contracting properly, which could increase the risk of postpartum hemorrhage. The nurse should assist the client to void and then reassess the position and firmness of the fundus to ensure appropriate uterine contraction.

Correct Answer: D

Rationale: The client's statement correctly reflects that Rh immune globulin is administered after delivery to prevent sensitization in future pregnancies, especially if the baby is Rh-positive.

Correct Answer: B

Rationale: A contraction duration of 100 seconds indicates potential uterine hyperstimulation, which can lead to fetal distress and decreased uterine perfusion. The nurse should discontinue the oxytocin infusion immediately to ensure the safety of both mother and fetus.

Correct Answer: D

Rationale: Blurred vision can be an indicator of serious conditions such as preeclampsia, which involves hypertension and can lead to significant maternal and fetal complications.

Correct Answer: B

Rationale: Variable decelerations are often caused by umbilical cord compression. Repositioning the client can help alleviate pressure on the cord and improve fetal oxygenation.