A pregnant woman presents with severe lower abdominal pain and vaginal bleeding. On examination, cervical motion tenderness and unilateral adnexal tenderness are noted, along with an adnexal mass on the affected side. Which of the following conditions is the most likely cause of these symptoms?

Correct Answer: A

Rationale: The clinical presentation of severe lower abdominal pain and vaginal bleeding in a pregnant woman, along with cervical motion tenderness, unilateral adnexal tenderness, and an adnexal mass on the affected side, is highly concerning for an ectopic pregnancy. Ectopic pregnancy occurs when a fertilized egg implants outside the uterus, most commonly in the fallopian tube. The presence of an adnexal mass and tenderness on one side is indicative of potential tubal involvement and can mimic symptoms of pelvic inflammatory disease. Prompt evaluation and management are crucial in ectopic pregnancy to prevent life-threatening complications associated with rupture of the fallopian tube.

Correct Answer: B

Rationale: Urticaria (hives) and pruritus (itching) are common signs of an allergic reaction to antibiotics, including those used for GBS prophylaxis during labor. Other signs of an adverse reaction may include flushing, fever, chills, and anaphylaxis. It is important to monitor the woman closely for any signs of an allergic reaction and to intervene promptly if one occurs to ensure the safety of both the mother and the baby.

Correct Answer: B

Rationale: In the case of umbilical cord prolapse, the priority nursing action is to prepare for an immediate cesarean section. Umbilical cord prolapse is a serious obstetric emergency where the umbilical cord slips through the cervix ahead of the presenting part of the fetus. This can lead to compression of the cord, compromising fetal blood flow and oxygenation. Immediate delivery via cesarean section is necessary in order to prevent fetal hypoxia and avoid potential complications such as brain damage or death. Elevating the mother's hips or administering intravenous fluids rapidly may be interventions done in conjunction with preparing for a cesarean section, but the priority remains expedited delivery of the baby. Applying external fetal monitoring is not the most appropriate action in this emergency situation.

Correct Answer: A

Rationale: Maternal dehydration can lead to a prolonged latent phase in labor due to inadequate hydration affecting the progress of labor. Dehydration can cause decreased blood volume, leading to poor uterine perfusion and inefficient uterine contractions. It also contributes to reduced amniotic fluid volume and can lead to maternal exhaustion. Therefore, assessment and correction of maternal hydration status are crucial in improving labor patterns and preventing complications during labor and delivery.

Correct Answer: B

Rationale: When a woman in active labor experiences persistent fetal malposition, such as a transverse lie presentation, assisting the mother into a hands-and-knees position is a nursing intervention to prioritize. This position can help encourage the fetus to rotate into a more favorable position for delivery, such as a head-down position. By placing the mother in a hands-and-knees position, gravity can assist in shifting the fetus to the correct position. This intervention is non-invasive and can be effective in promoting the progress of labor and avoiding the need for more invasive interventions like instrumental delivery or cesarean section. However, if the fetus does not rotate or if there are signs of fetal distress, further interventions may be necessary.