A 35-year-old gravida 1, para 0 client at 36 weeks gestation is admitted to the labor and delivery unit with bright red vaginal bleeding. An ultrasound confirms complete placenta previa. The client's vital signs are: blood pressure 90/60 mmHg, heart rate 110 bpm, respirations 22/min. The fetal heart rate shows a baseline of 140 bpm with minimal variability. What is the priority nursing intervention?

Complete placenta previa with active bleeding and signs of maternal hypotension/tachycardia requires emergency cesarean section to prevent maternal shock and fetal death. Other options (vaginal exam, oxytocin, Trendelenburg) are contraindicated or ineffective as they may exacerbate bleeding or delay definitive treatment.

Understanding the Clinical Scenario
The client presents with classic signs of complete placenta previa at 36 weeks gestation: painless, bright red vaginal bleeding confirmed by ultrasound. Her vital signs reveal hypotension (90/60 mmHg), tachycardia (110 bpm), and tachypnea (22/min), indicating hypovolemic shock secondary to hemorrhage. The fetal heart rate shows a baseline of 140 bpm with minimal variability, a sign of fetal distress likely caused by uteroplacental insufficiency and maternal hypotension. This combination of maternal hemodynamic instability and a non-reassuring fetal status constitutes an obstetric emergency ^[1].

Why Cesarean Section is the Priority
In a complete placenta previa, the placenta entirely covers the internal cervical os, making vaginal delivery impossible without risking catastrophic maternal hemorrhage and fetal anoxia. The priority nursing intervention is to prepare for an emergency cesarean section. This is the definitive treatment to simultaneously control the source of maternal bleeding (by delivering the placenta) and rescue the compromised fetus. Delaying surgical intervention increases the risk of disseminated intravascular coagulation, severe fetal acidemia, and maternal death. The study by Rimdzeviciute et al. reinforces that placenta previa is associated with significantly higher rates of adverse maternal outcomes, including postpartum hemorrhage and the need for blood transfusion, which are managed through timely surgical delivery ^[1].

Analysis of Incorrect Options
- Option 1 (Sterile vaginal examination): This is strictly contraindicated. A digital cervical examination can disrupt the placenta overlying the os, precipitating a massive, uncontrolled hemorrhage. The diagnosis has already been confirmed by ultrasound, making a vaginal exam both dangerous and unnecessary.
- Option 3 (Administer oxytocin): Oxytocin stimulates uterine contractions, which would further shear the placenta away from the lower uterine segment, dramatically worsening the hemorrhage. It is never used to control bleeding in an undelivered placenta previa.
- Option 4 (Trendelenburg position): While historically used for hypotension, this position can compromise maternal respiratory function by pushing abdominal contents against the diaphragm and has not been shown to improve outcomes. The optimal position for a client with antepartum hemorrhage is a lateral tilt to displace the gravid uterus off the vena cava, improving venous return while preparations for the operating room are underway. The immediate priority is not repositioning but mobilizing the surgical team.

Connecting the Evidence to Practice
The research by Rimdzeviciute et al. provides the clinical context for this urgency. Their case-control study demonstrated that women with placenta previa are a high-risk group with distinct clinical characteristics, including higher parity, and they experience significantly worse maternal outcomes compared to controls ^[1]. This evidence underscores that placenta previa is not a condition that can be managed expectantly once hemorrhage and fetal compromise are present. The nurse's role is to recognize the severity, initiate continuous maternal and fetal monitoring, secure large-bore intravenous access for fluid resuscitation, and immediately prepare the client for the operating room to facilitate the emergency cesarean section that is required to prevent maternal and neonatal morbidity and mortality ^[1].