A nurse is caring for a laboring client when the membranes r… | 마이메르시 MyMerci
Maternal Newborn Health
문제

A nurse is caring for a laboring client when the membranes rupture spontaneously. Which assessment finding would indicate umbilical cord prolapse and require immediate intervention?

해설
Fetal heart rate dropping to 80 bpm with variable decelerations indicates umbilical cord prolapse requiring immediate intervention. Other findings (meconium-stained fluid, maternal hypertension, irregular contractions) are not specific to cord prolapse.

심화 해설

Core Nursing Explanation Key Concept Analysis: This question assesses the critical ability to recognize Umbilical Cord Prolapse, a life-threatening obstetric emergency. It occurs when the umbilical cord descends through the cervix ahead of or alongside the presenting part of the fetus (e.g., the head) after the rupture of membranes (ROM). This can lead to cord compression, cutting off oxygenated blood flow to the fetus. The hallmark sign is a sudden, severe, and prolonged fetal bradycardia or a pattern of variable decelerations on the fetal heart rate (FHR) monitor, triggered by cord compression during contractions or fetal movement.

Answer Rationale: Key Point! A fetal heart rate (FHR) dropping to 80 beats per minute (severe bradycardia) with variable decelerations is the classic and most immediate sign of cord compression from a prolapsed cord. Variable decelerations are characterized by their variable shape, timing, and depth in relation to contractions, and they indicate umbilical cord compression. This finding requires immediate intervention to relieve pressure on the cord and prepare for an emergency cesarean delivery.

Distractor Analysis:
Watch out for confusion! Option 2: Meconium-stained amniotic fluid. While this can indicate fetal stress or post-maturity, it is not a specific sign of cord prolapse. Thick meconium (particulate) is a concern for meconium aspiration syndrome but does not signal the same immediate, catastrophic threat as cord prolapse.
Option 3: Maternal hypertension (160/100 mmHg). This finding is significant for conditions like preeclampsia, which requires monitoring and management. However, it is a maternal complication and is not the direct, pathophysiological consequence of a prolapsed umbilical cord.
Option 4: Irregular, less frequent uterine contractions. This pattern might indicate dysfunctional labor or hypotonic uterine activity. It is not associated with cord prolapse; in fact, strong contractions can worsen cord compression, but the change described here is not the primary diagnostic indicator.

Related Concepts: The immediate nursing actions for suspected cord prolapse are critical: 1) Call for help (physician, team). 2) Do NOT attempt to push the cord back in. 3) Position the mother to relieve pressure—typically Trendelenburg (head-down) position or a knee-chest position. 4) Manually elevate the presenting part off the cord by inserting a gloved hand into the vagina (if trained to do so). 5) Administer oxygen to the mother. 6) Prepare for an emergency cesarean section.
Concept SummaryEmergency: Umbilical Cord Prolapse. • Pathophysiology: Cord precedes fetus after ROM → Cord compression → Fetal hypoxia/acidosis. • Key Sign: Sudden, severe/prolonged FHR decelerations (variable decels, bradycardia). • Immediate Action: Relieve cord pressure (position change, manual elevation), prepare for emergency C-section.
Side-by-Side Comparison!
FindingIndicatesNursing Priority
FHR: 80 bpm, Variable DecelsUmbilical Cord Prolapse/Compression (Fetal Emergency)Immediate Intervention: Relieve pressure, prep for C-section
Meconium-Stained FluidFetal stress (may be chronic)Monitor for signs of fetal distress, prepare for neonatal suctioning if thick
Maternal BP 160/100 mmHgPreeclampsia (Maternal Emergency)Monitor for seizures (eclampsia), manage BP, prepare magnesium sulfate
Irregular, Infrequent ContractionsDysfunctional Labor (e.g., hypotonic)Monitor labor progress, may require oxytocin augmentation

Anatomy, Physiology & Pharmacology PointsAnatomy: The umbilical cord contains two arteries and one vein, transporting oxygenated blood (from placenta to fetus via the vein) and deoxygenated blood (from fetus to placenta via the arteries). Compression obstructs this vital flow.
Physiology: Variable decelerations on the FHR monitor are caused by transient compression of the umbilical cord, often seen as V- or U-shaped dips. Prolonged or severe decelerations indicate significant compromise.
Pharmacology: Tocolytics (e.g., terbutaline) may sometimes be administered to relax the uterus and reduce contraction-induced cord compression while preparing for delivery.
Memory TipsAcronym: PROLAPSE
Pressure on cord → Relieve it!
Oxygen for mom
Lift presenting part (manual)
Alert team (call for help)
Position (Trendelenburg/knee-chest)
Section (C-section) prep
Emergency!
High-Frequency NCLEX Topics Umbilical cord prolapse is a classic NCLEX-RN priority question. The exam tests your ability to: 1) Identify the key assessment finding (FHR abnormality). 2) Select the immediate nursing action (positioning, notifying). 3) Understand the rationale for emergency delivery. Always think "fetal oxygenation" when you see sudden FHR changes post-ROM.
Watch Out for Question Variations! • Instead of asking for the sign, the question may ask: "The nurse observes a loop of umbilical cord in the vagina after ROM. What is the priority nursing action?" (Answer: Position mother to relieve pressure on the cord).
• It may combine with other emergencies: "A client with cord prolapse is being positioned. Which subsequent finding indicates the intervention is effective?" (Answer: FHR returns to normal baseline).

임상 시나리오

Nursing Clinical Practice Guide Clinical Scenario: You are the nurse for Maria, G2P1 at 39 weeks, in active labor. Her cervix is 6 cm dilated. Suddenly, she reports a "big gush" of fluid. You confirm spontaneous rupture of membranes (SROM). As you assess her, you note the FHR monitor, which had been reassuring at 140 bpm, now shows a sudden drop to 80 bpm with deep, variable decelerations.

Nursing Intervention Strategy: 1. Assessment & Immediate Action: Shout for help! Your primary assessment is the FHR. The finding confirms the emergency. Do NOT perform a vaginal exam if cord prolapse is suspected from the FHR alone, as it may worsen prolapse. If you visually see or palpate the cord in the vagina during exam, that confirms it. 2. Interventions to Relieve Pressure:Positioning: Immediately assist Maria into a Trendelenburg position (head down, feet elevated) or a knee-chest position. This uses gravity to pull the fetal presenting part away from the pelvis and off the cord. • Manual Elevation: If trained and the cord is visible/palpable, with a sterile gloved hand, gently lift the fetal presenting part (e.g., the head) off the cord. Maintain this pressure until delivery. • Oxygen: Apply a non-rebreather mask at 10-15 L/min to the mother to maximize fetal oxygenation. 3. Communication & Preparation: Alert the obstetrician/CNM and the neonatal team STAT. Clearly state: "Possible cord prolapse, FHR 80 with variable decels." Prepare for an emergency cesarean section. Start IV fluids if not already running. Continuously monitor FHR.

Patient Safety and Precautions:Contraindication: Never attempt to push a prolapsed cord back into the uterus. This can cause cord spasm and worsen compression. • Key Monitoring: The FHR is your guide. If positioning/manual elevation is effective, the FHR should improve. If it does not, it underscores the extreme urgency. • Documentation: Precisely document the time of ROM, time of FHR change, actions taken (positioning, notification), and the response of the FHR.
Nursing Procedure & Medication Flow Procedure: Responding to Suspected Cord Prolapse 1. Recognize FHR abnormality (bradycardia, severe variable decels) post-ROM. 2. Call for HELP (Activate emergency protocol). 3. Position client: Trendelenburg or knee-chest. 4. Administer O2 via non-rebreather mask at 10-15 L/min. 5. If cord is visible/vaginal exam confirms: With sterile glove, gently lift presenting part off cord. Do not push cord. 6. Notify physician/CNM and OR team immediately. 7. Monitor FHR continuously. 8. Prepare for emergency cesarean section: Consent, IV, preoperative prep. 9. Document everything: Time, findings, interventions, responses.
A Word from Your Senior Nurse "Cord prolapse is one of those 'stop everything' moments in labor and delivery. Your quick thinking and actions in those first 60 seconds are what buy time for the baby. In clinicals and on the NCLEX, they're testing your ability to prioritize the fetal heartbeat above all else in this scenario. Remember the sequence: See the bad strip → Call → Position → Oxygen → Prepare for OR. Don't get distracted by other findings; stay focused on the threat to fetal oxygenation. This is where your knowledge directly saves a life."

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