# A 35-year-old gravida 4, para 3 client at 32 weeks gestation presents to the emergency department with sudden onset of bright red, painless vaginal bleeding. Which assessment finding would be most concerning and require immediate intervention?

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> subject: Maternal Newborn Health

## 문제

A 35-year-old gravida 4, para 3 client at 32 weeks gestation presents to the emergency department with sudden onset of bright red, painless vaginal bleeding. Which assessment finding would be most concerning and require immediate intervention?

The client reports the bleeding started suddenly about 2 hours ago while she was resting at home. She denies any abdominal pain or cramping. Her previous pregnancies were uncomplicated with normal vaginal deliveries.

## 보기

1. Maternal heart rate of 88 beats per minute with regular rhythm
2. Fetal heart rate showing late decelerations with decreased variability **✔ 정답**
3. Blood pressure of 110/70 mmHg with no orthostatic changes
4. Fundal height measuring 32 cm with a soft, nontender uterus

**정답: 2**

## 해설

Late decelerations with decreased variability indicate fetal hypoxia and compromise, requiring immediate intervention to prevent fetal death. Other findings (maternal vital signs, fundal height) are less urgent in this context of painless bleeding.

## 심화 해설

Clinical Presentation Analysis

The client presents with classic signs of placenta previa: sudden onset of bright red, painless vaginal bleeding at 32 weeks gestation in a multigravida client. The absence of abdominal pain or cramping helps differentiate this from placental abruption, which typically presents with painful dark red bleeding and a rigid, tender uterus. The soft, nontender uterus and fundal height consistent with gestational age further support placenta previa as the likely diagnosis. The immediate priority is assessing fetal well-being, as placental separation from the lower uterine segment can compromise fetal oxygenation.

Why Option 2 Is the Priority Finding

Fetal heart rate showing late decelerations with decreased variability is the most concerning finding requiring immediate intervention. Late decelerations indicate uteroplacental insufficiency, where the fetus experiences hypoxemia during uterine contractions due to compromised placental perfusion [3]. In the context of placenta previa, bleeding from the low-lying placenta directly threatens oxygen delivery to the fetus. Decreased variability reflects fetal acidemia and central nervous system depression, signaling that fetal compensatory mechanisms are failing. This combination represents a Category III fetal heart rate tracing, which is predictive of abnormal fetal acid-base status and requires prompt evaluation and intervention [3]. Continuous monitoring and recording of fetal heart rate patterns through cardiotocography (CTG) allows assessment of fetal condition and detection of hypoxia before irreversible damage occurs [3]. Without immediate action such as maternal repositioning, oxygen administration, intravenous fluid bolus, and preparation for emergency cesarean delivery, fetal demise may result.

Analysis of Remaining Options

Option 1 describes a maternal heart rate of 88 beats per minute with regular rhythm, which falls within the normal range for a third-trimester gravid client. While tachycardia could indicate hypovolemia from hemorrhage, this finding represents a reassuring maternal compensatory response rather than an immediate threat.

Option 3 presents a blood pressure of 110/70 mmHg without orthostatic changes, indicating adequate maternal perfusion and compensatory mechanisms are maintaining hemodynamic stability despite bleeding. This is a reassuring finding that does not require immediate intervention beyond ongoing monitoring.

Option 4 documents a fundal height of 32 cm with a soft, nontender uterus, which is consistent with the expected findings in placenta previa and appropriate for gestational age. This finding helps confirm the diagnosis but does not indicate an immediate threat to maternal or fetal well-being.

Clinical Priority and Nursing Implications

In obstetrical emergencies, the nurse must recognize that fetal status takes precedence when maternal vital signs remain stable. Competent and skilled assessment of fetal well-being is essential for reducing perinatal morbidity and mortality . The nurse should immediately notify the healthcare provider of Category III fetal heart rate patterns, initiate intrauterine resuscitation measures including left lateral positioning to relieve vena cava compression and maximize placental perfusion, administer supplemental oxygen via face mask, and increase intravenous fluid rates to improve intravascular volume. Simultaneously, preparations for possible emergency cesarean delivery should begin, as placenta previa with non-reassuring fetal status necessitates expedited delivery regardless of gestational age. Electronic fetal monitoring interpretation skills are critical for timely recognition of fetal compromise, as continuous monitoring with appropriate interpretation can improve perinatal outcomes when combined with prompt clinical response .References (research sources)

- [3]Labor management and neonatal outcomes in cardiotocography categories II and III (Review).Research articleTsikouras P, Oikonomou E, Bothou A, Kyriakou D, Nalbanti T, Andreou S, Daniilidis A, Peitsidis P, Nikolettos K, Iatrakis G, Nikolettos N. (2024) · DOI: 10.3892/mi.2024.151

## 임상 시나리오

Clinical Practice Guide: Painless Vaginal Bleeding in Third Trimester

Patient Scenario

A 35-year-old G4P3 at 32 weeks presents with sudden, painless, bright red vaginal bleeding. The uterus is soft and nontender. This classic presentation strongly suggests placenta previa until proven otherwise. The immediate priority is maternal stabilization and fetal assessment.

Critical Assessment Priorities

- **Do NOT perform a digital cervical exam:** This can disrupt the low-lying placenta and precipitate catastrophic hemorrhage.

- **Continuous fetal monitoring:** Immediately initiate electronic fetal monitoring to evaluate for signs of uteroplacental insufficiency, such as late decelerations, decreased variability, or bradycardia.

- **Maternal hemodynamic status:** Assess vital signs, orthostatic changes, and quantify blood loss to identify hypovolemia.

- **Confirm diagnosis:** Bedside ultrasound is the gold standard to locate the placenta and rule out previa.

Recognizing the Most Concerning Fetal Finding

A Category III fetal heart rate tracing, such as late decelerations with decreased or absent variability, indicates fetal acidemia and failing compensatory mechanisms. This finding signifies severe uteroplacental insufficiency from placental separation or hemorrhage and demands immediate intervention, including preparing for emergency cesarean delivery if the tracing does not resolve with intrauterine resuscitative measures.

Immediate Nursing Interventions

- Place the client in a lateral position to maximize uteroplacental perfusion.

- Administer oxygen via non-rebreather mask at 10 L/min to improve fetal oxygenation.

- Initiate IV access with a large-bore catheter and begin IV fluid bolus as prescribed to support maternal blood pressure and placental perfusion.

- Notify the obstetric provider and prepare for possible emergency cesarean section if fetal distress persists.

- Provide emotional support and clear communication to the client and family.

## 핵심 개념

- **Placenta Previa** — A condition where the placenta implants in the lower uterine segment, covering the cervical os, often presenting with painless, bright red vaginal bleeding in the third trimester.
- **Late Decelerations** — A fetal heart rate pattern where the deceleration's nadir occurs after the peak of a contraction, indicating uteroplacental insufficiency and fetal hypoxemia.
- **Decreased Variability** — A reduction in the beat-to-beat fluctuations of the fetal heart rate, reflecting fetal central nervous system depression and acidemia.
- **Category III Fetal Heart Rate Tracing** — An abnormal fetal heart rate pattern, such as late decelerations with absent variability, predictive of abnormal fetal acid-base status and requiring prompt intervention.
- **Uteroplacental Insufficiency** — A condition where the placenta fails to deliver adequate oxygen and nutrients to the fetus, often due to compromised placental blood flow.

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