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.

Correct Answer: A

Rationale: Quickening, or the sensation of fetal movement, is considered a presumptive sign of pregnancy. It is not definitive because other conditions, such as gas or intestinal movement, can mimic the feeling of fetal movement.

Correct Answer: B

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

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: A

Rationale: Cesarean birth doubles the risk for deep-vein thrombosis (DVT) due to immobility and vascular changes associated with surgery. Other risk factors include smoking, obesity, and a history of thromboembolism.