Correct Answer: D

Rationale: The correct answer is D. Ambulating twice daily is not recommended for a client with severe preeclampsia. Clients with severe preeclampsia are at risk for seizures and should be on bed rest to prevent complications. Ambulation can increase blood pressure and the risk of seizure activity in these clients. Assessing deep tendon reflexes, obtaining a daily weight, and continuous fetal monitoring are all appropriate and important interventions for a client with severe preeclampsia to monitor for signs of worsening condition and fetal well-being.

Correct Answer: D

Rationale: At 0 station, the lowermost portion of the fetus is at the level of the ischial spines, indicating that the presenting part of the baby has engaged in the pelvis. This position is a significant milestone in labor progress and suggests that the baby is descending into the birth canal for delivery. Choices A, B, and C are incorrect. Choice A refers to the fetal head position, choice B describes the largest fetal diameter passing through the pelvic outlet (which is not related to station), and choice C refers to the palpability of the posterior fontanel (which is not relevant to station in labor).

Correct Answer: A

Rationale: Assessing the firmness of the uterus is crucial in this situation. A uterus that is not firm could indicate postpartum hemorrhage, a common cause of low blood pressure after childbirth. By evaluating the firmness of the uterus, the nurse can quickly identify and address potential complications, such as excessive bleeding. Initiating oxygen therapy, administering oxytocin infusion, or obtaining a type and crossmatch may be necessary interventions later, but assessing the firmness of the uterus takes precedence as the first step in managing postpartum complications.

Correct Answer: C

Rationale: The correct answer is C: "Breech." The RSA position indicates that the fetus is in a breech presentation. In a breech presentation, the buttocks or feet are positioned to be delivered first, which can impact the mode of delivery and require close monitoring during labor and birth. Choice A (Vertex) refers to the head-first presentation, which is considered the normal and most common presentation for birth. Choice B (Shoulder) does not represent a specific fetal presentation. Choice D (Mentum) refers to the chin presentation, which is also not relevant in this scenario.

Correct Answer: A

Rationale: The correct answer is increased blood pressure in the arms with decreased blood pressure in the legs. Coarctation of the aorta is a congenital heart defect characterized by a narrowing of the aorta, leading to increased blood pressure in the upper extremities and decreased blood pressure in the lower extremities due to decreased blood flow beyond the narrowing. Choice B is incorrect because coarctation of the aorta does not lead to increased blood pressure in the legs. Choice C is incorrect because increased blood pressure in both the arms and legs is not a typical manifestation of coarctation of the aorta. Choice D is incorrect because decreased blood pressure in both the arms and legs is not characteristic of coarctation of the aorta.