# A 28-year-old woman at 32 weeks gestation presents to the emergency department with sudden onset of severe abdominal pain and vaginal bleeding. Her vital signs are: BP 90/60 mmHg, HR 120 bpm, RR 24/min, O2 sat 95%. The fetal heart rate shows late decelerations with decreased variability. What is the nurse's highest priority action?

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> subject: Maternal Newborn Health

## 문제

A 28-year-old woman at 32 weeks gestation presents to the emergency department with sudden onset of severe abdominal pain and vaginal bleeding. Her vital signs are: BP 90/60 mmHg, HR 120 bpm, RR 24/min, O2 sat 95%. The fetal heart rate shows late decelerations with decreased variability. What is the nurse's highest priority action?

## 보기

1. Prepare for immediate cesarean delivery
2. Insert two large-bore IV catheters and begin fluid resuscitation
3. Position the client in left lateral position and administer oxygen
4. Notify the obstetrician immediately and prepare for emergency delivery **✔ 정답**

**정답: 4**

## 해설

The presentation indicates placental abruption with maternal shock and fetal distress, requiring immediate obstetric notification and emergency delivery preparation. Other interventions like IV access and positioning are supportive but secondary to urgent delivery.

## 심화 해설

Clinical Context and Priority Setting

This clinical presentation is a classic picture of placental abruption, an obstetric emergency where the placenta prematurely detaches from the uterine wall. The patient exhibits signs of hemodynamic instability (BP 90/60 mmHg, HR 120 bpm) and the fetal heart rate tracing shows late decelerations with decreased variability, indicating fetal distress and uteroplacental insufficiency. In the NCLEX-RN framework, this scenario tests your ability to prioritize actions when both maternal and fetal lives are at immediate risk.

Analysis of the Highest Priority Action

The correct answer is to notify the obstetrician immediately and prepare for emergency delivery. This action is the highest priority because it directly addresses the root cause of the crisis and initiates definitive treatment. The foundational principle here is that in a major obstetric hemorrhage with a non-reassuring fetal status, the only way to definitively stop the hemorrhage and resolve fetal distress is to deliver the fetus and placenta. Delays in response are a critical factor in preventable maternal deaths, as highlighted by research exploring the implementation of maternal guidelines in emergency settings [1]. The study emphasizes that delayed response to complications and poor adherence to protocols are directly linked to adverse outcomes [1]. Your immediate call to the physician activates the chain of command and the emergency response protocol, which is the most critical step you can take as the bedside nurse.

Why Other Options Are Not the Highest Priority

While the other actions are all necessary components of care, they are not the single highest priority action when considered in sequence.

-   Option 1 (Prepare for immediate cesarean delivery): This is the definitive treatment, but it is a dependent nursing action that requires a provider's order. You cannot independently prepare for a cesarean section without first notifying the physician and receiving the directive. The notification must come first.

-   Option 2 (Insert two large-bore IV catheters and begin fluid resuscitation): This is a critical, independent nursing intervention for managing hypovolemic shock. However, in the hierarchy of priorities, activating the emergency response system and getting the provider to the bedside takes precedence. Fluid resuscitation is a temporizing measure that supports the patient while awaiting definitive surgery. The most impactful step to stop the bleeding is delivery, which requires the physician.

-   Option 3 (Position the client in left lateral position and administer oxygen): This is an immediate, independent intervention to maximize uteroplacental perfusion and fetal oxygenation. It should be done simultaneously with or immediately after calling for help. However, it is a supportive measure, not the action that will resolve the life-threatening emergency. The priority is to get the decision-maker (the obstetrician) to the bedside to move toward delivery.

Pathophysiology and Clinical Decision-Making

The patient's hypotension and tachycardia indicate significant blood loss, likely from a concealed or overt placental abruption. The fetal heart rate pattern of late decelerations with decreased variability is a direct consequence of maternal hemodynamic instability and placental compromise, leading to fetal hypoxia and acidosis. The biomarker alpha-fetoprotein (AFP) is often elevated in cases of placental abruption, as it leaks from the fetal-placental unit into the maternal circulation, serving as an indicator of placental disruption . Understanding this pathophysiology reinforces why temporizing measures like oxygen and fluids are insufficient; the underlying pathology of a separating placenta cannot be reversed without delivery. The study on guideline implementation in rural areas underscores that the gap between recognizing an emergency and acting on it is where preventable deaths occur, making your immediate notification the pivotal nursing action that bridges assessment and definitive treatment [1].References (research sources)

- [1]Experiences of Health Professionals Regarding Existing Guidelines Used to Manage Obstetric Emergencies in a Rural Area of South Africa: A Qualitative Explorative Study.GuidelineBaloyi CS, Ntimana CB, Maimela E. (2026) · DOI: 10.3390/ijerph23050555

## 임상 시나리오

Clinical Guide: Placental Abruption with Hemodynamic Instability

This guide outlines the immediate nursing actions for a patient presenting with suspected placental abruption, maternal hemorrhage, and non-reassuring fetal status. The primary goal is to activate the emergency response and prepare for rapid delivery.

1. Immediate Recognition and Activation

- **Assess for classic triad:** Sudden onset of severe abdominal pain, vaginal bleeding (may be concealed), and uterine hypertonicity.

- **Recognize signs of shock:** Maternal hypotension (BP 90/60 mmHg) and tachycardia (HR 120 bpm) indicate significant blood loss.

- **Identify fetal compromise:** Late decelerations with decreased variability on the fetal heart rate tracing signal uteroplacental insufficiency and fetal acidosis.

- **Activate the chain of command:** The nurse's highest priority is to notify the obstetrician or certified nurse-midwife immediately. This single action initiates the emergency response protocol and is the most critical step in preventing maternal and fetal mortality.

2. Prepare for Emergency Delivery

- **Prepare the operating room:** Anticipate the need for an emergent cesarean delivery. Ensure the surgical team, anesthesia provider, and neonatal resuscitation team are notified simultaneously.

- **Gather equipment:** Obtain the emergency cesarean section pack, infant warmer, and resuscitation equipment.

- **Insert two large-bore IV catheters:** This is the next priority after provider notification. Begin fluid resuscitation with warmed crystalloids (e.g., Lactated Ringer's) as prescribed to combat hypovolemic shock.

- **Type and crossmatch:** Draw blood for a complete blood count, coagulation profile, and type and crossmatch for at least 2-4 units of packed red blood cells, as massive transfusion may be required.

3. Concurrent Supportive Interventions

- **Optimize maternal position:** Place the patient in a left lateral position to displace the uterus off the inferior vena cava, improving venous return and cardiac output.

- **Administer high-flow oxygen:** Apply a non-rebreather mask at 10-15 L/min to maximize maternal oxygenation and oxygen delivery to the fetus.

- **Continuous monitoring:** Continuously monitor maternal vital signs, oxygen saturation, and fetal heart rate. Insert an indwelling urinary catheter to monitor urine output as a marker of renal perfusion.

- **Provide psychosocial support:** Explain interventions calmly and provide emotional support to the patient and her family during the crisis.

4. Key Safety and Documentation Points

- **Do not perform a digital vaginal examination** if placenta previa has not been ruled out, as it could precipitate catastrophic hemorrhage.

- **Document all events chronologically:** Include the time of symptom onset, vital signs, fetal heart rate patterns, provider notification, interventions performed, and the patient's response.

- **Debrief after the event:** Participate in a team debriefing to review the response, identify areas for improvement, and support team well-being.

Reference: Adapted from AWHONN practice guidelines for obstetric emergencies and institutional protocols for massive transfusion in obstetrics.

## 핵심 개념

- **Placental Abruption** — Premature separation of the placenta from the uterine wall, a life-threatening obstetric emergency causing maternal hemorrhage and fetal distress.
- **Late Decelerations** — Fetal heart rate decreases that begin after the peak of a contraction and return to baseline after the contraction ends, indicating uteroplacental insufficiency.
- **Priority Setting in Obstetric Emergencies** — The principle that when both maternal and fetal lives are at risk from hemorrhage, the definitive treatment is delivery, making provider notification the highest priority action.

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