Correct Answer: B

Rationale: Nasal flaring can indicate respiratory distress and should be reported immediately for further evaluation.

Correct Answer: A

Rationale: The first action should be to change the client's position, as this can relieve pressure on the umbilical cord and improve fetal oxygenation, addressing the cause of late decelerations.

Correct Answer: C

Rationale: Endometriosis is associated with an increased risk of developing ovarian cancer due to chronic inflammation and hormonal imbalances. The exact cause is not fully understood, but women with endometriosis should be monitored closely.

Correct Answer: C

Rationale: The client is likely experiencing postpartum blues, which is common and characterized by mood swings, tearfulness, and emotional letdown shortly after delivery.

Correct Answer: D

Rationale: The nurse should assist the client into the knee-chest position to relieve pressure on the umbilical cord. This position helps to prevent cord compression and improves fetal oxygenation.