A nurse is caring for a laboring client at 36 weeks gestation with a history of myomectomy who suddenly reports severe abdominal pain and states "something tore inside me." The fetal heart rate tracing shows sudden onset of bradycardia. What is the most critical assessment the nurse should perform immediately?
1Check the client's blood pressure and pulse rate
2Palpate the abdomen for fetal parts and uterine contour✓ 정답
3Perform a sterile vaginal examination to assess cervical dilation
4Auscultate fetal heart tones with a Doppler device
해설
Uterine rupture is a life-threatening emergency. The most critical immediate assessment is palpating the abdomen for fetal parts and uterine contour (option 2) to detect the pathognomonic sign. Other assessments (vital signs, vaginal exam, auscultation) are less urgent.
Core Nursing ExplanationKey Concept Analysis: This question tests the nurse's ability to recognize and prioritize care for a suspected Uterine Rupture, a catastrophic obstetric emergency. The scenario presents classic risk factors (prior myomectomy, a surgery on the uterine muscle) and classic symptoms: sudden, severe "tearing" abdominal pain and sudden onset of fetal bradycardia on the monitor. The core pathophysiology is the complete or partial tearing of the uterine wall, which can lead to maternal hemorrhage, fetal hypoxia, and death of both if not addressed immediately with surgical intervention.
Answer Rationale: Key Point! The most critical immediate nursing action is to confirm the suspicion. Palpating the abdomen for fetal parts and uterine contour (option 2) is the direct, hands-on assessment that can reveal the pathognomonic (definitive) sign of uterine rupture: the ability to palpate fetal parts outside the uterus in the maternal abdomen, or a change in the uterine shape (e.g., a retraction ring). This assessment provides immediate, critical data to escalate the emergency. While all actions are part of the response, this one yields the most specific diagnostic information in the shortest time.
Distractor Analysis:
Watch out for confusion! Option 1 (Check BP/Pulse): While vital signs are always important, in uterine rupture, significant maternal hypotension and tachycardia are late signs of hypovolemic shock from hemorrhage. Relying on them for initial diagnosis wastes precious time. The nurse should act on the earlier, more specific signs of pain and fetal distress.
Option 3 (Sterile Vaginal Exam): This is contraindicated. In suspected uterine rupture, inserting anything into the vagina is dangerous and can worsen the situation (e.g., if a presenting part has prolapsed through the rupture). It also delays the more critical abdominal assessment and preparation for surgery.
Option 4 (Auscultate with Doppler): The scenario already states the electronic fetal monitor shows "sudden onset of bradycardia." Re-auscultating confirms what is already known and does not help diagnose the cause. It is a redundant assessment that delays critical intervention.
Related Concepts: This scenario integrates knowledge of risk factors for uterine rupture (previous uterine surgery like myomectomy or classical C-section, grand multiparity, overuse of oxytocin), the link between fetal bradycardia and compromised placental perfusion, and the nursing process in emergencies (rapid assessment → diagnosis → immediate intervention). The priority is always to identify the life-threatening problem first (Assessment) before moving to other supportive measures.
Concept Summary
Concept
Key Points
Uterine Rupture
Complete tear through uterine wall. Medical/surgical emergency. Presents with severe tearing pain, fetal distress (bradycardia), loss of uterine contour, maternal shock.
Priority Nursing Action
Immediate abdominal palpation to assess for fetal parts outside uterus/change in uterine shape. Call for help (MD, OR team) and prepare for emergency cesarean section.
Risk Factors
Previous uterine surgery (myomectomy, classical C-section), grand multiparity, uterine overdistension, traumatic delivery, oxytocin misuse.
Fetal Implications
Sudden, severe, prolonged bradycardia due to placental separation and fetal hypoxia. High risk for fetal death or severe neurologic injury.
Side-by-Side Comparison!
Condition
Key Symptoms
Immediate Nursing Priority
Uterine Rupture
Sudden "tearing" pain, fetal bradycardia, palpable fetal parts in abdomen, maternal shock (late).
Palpate abdomen for uterine contour/fetal parts. Prepare for emergency surgery.
Placental Abruption
Sudden dark vaginal bleeding, painful rigid uterus, fetal distress.
Assess for concealed hemorrhage (fundal height, vital signs). Monitor for coagulopathy (DIC). Prepare for delivery.
Uterine Inversion
Sudden hypotension, fundus not palpable, possible bleeding, mass in vagina.
Call for help. Do NOT remove placenta if attached. Manually replace uterus (by MD). Treat shock.
Anatomy, Physiology & Pharmacology Points
Pathophysiology: A prior myomectomy (surgical removal of uterine fibroids) creates a scar on the myometrium. During labor, the intense contractions can cause this scarred area to weaken and tear open.
Fetal Physiology: The sudden bradycardia indicates acute fetal hypoxia. When the uterus ruptures, the placenta may partially or completely separate from the uterine wall, cutting off the fetal oxygen supply.
Pharmacology Caution: Oxytocin (Pitocin) is a major risk factor for uterine rupture in scarred uteri due to its potent uterine-stimulating effects. Its use requires extreme caution and continuous monitoring.
Memory Tips
Acronym: R.U.P.T.U.R.E. R - Risk factors (Prior surgery)
U - Unrelenting, tearing pain
P - Palpate abdomen (Priority action!)
T - Tachycardia (fetal bradycardia, maternal late)
U - Uterine shape lost
R - Rapid response needed (OR team)
E - Emergency cesarean
Think: "Feel the Belly First." When you hear "tearing pain" + fetal distress, your first hands-on move is abdominal palpation, not reaching for the BP cuff or the Doppler.
High-Frequency NCLEX Topics
This is a classic priority-setting and "first action" question. The NCLEX loves to test your ability to differentiate between urgent and non-urgent or even harmful actions in an emergency. Remember: In an OB emergency, the assessment that most quickly confirms the life-threatening diagnosis is almost always the priority. Do not get distracted by routine actions (like checking vitals) when a specific, pathognomonic sign can be assessed immediately.
Watch Out for Question Variations!
Shift from Assessment to Intervention: "The nurse confirms uterine rupture. What is the priority intervention?" Answer: Prepare for immediate emergency cesarean section and administer oxygen via non-rebreather mask.
Change in Presentation: The question might omit the pain and focus on "sudden cessation of labor contractions" with fetal bradycardia and maternal tachycardia—still think uterine rupture.
Postpartum Focus: "A postpartum client with a history of myomectomy reports sudden, severe abdominal pain and dizziness." This could indicate a delayed uterine rupture, and the priority is still abdominal assessment and rapid treatment for hemorrhage.
Nursing Clinical Practice GuideClinical Scenario: You are the labor & delivery nurse for Maria, G2P1 at 36 weeks, with a history of an open myomectomy 3 years ago. She is 6 cm dilated. Suddenly, she grabs her abdomen, screams in pain, and cries, "It feels like something ripped!" You look at the monitor: the fetal heart rate has dropped from 140s to 80 bpm and is not recovering.
Nursing Intervention Strategy:
Immediate Action (Seconds): Stay calm but act with urgency. Call out for help—"I need the charge nurse and doctor in here STAT, possible uterine rupture!" While calling, move to the bedside and gently but firmly palpate Maria's abdomen. You are assessing: Can you feel the fetal outline easily? Does the uterus feel like a firm ball, or is it poorly defined/abnormal in shape?
Simultaneous Actions (Within 1 minute):
If a colleague is present, delegate: "You, call the OR team and anesthesia, stat. Tell them we need an emergency C-section for suspected uterine rupture."
Place Maria in a left lateral tilt (if not contraindicated by her condition) to optimize venous return.
Apply oxygen via non-rebreather mask at 10-15 L/min to maximize fetal and maternal oxygenation.
Establish or verify a large-bore (16- or 18-gauge) IV line is patent for rapid fluid and blood administration.
Ongoing Monitoring & Preparation:
Monitor vital signs frequently (q2-5min) for signs of shock (rising pulse, falling BP).
Do not perform a vaginal exam or administer any uterotonic medications (like Pitocin).
Quickly explain to Maria and her partner what is happening in simple terms: "We think your uterus may have opened, which is very serious for you and the baby. We need to do an emergency surgery right now to deliver the baby safely."
Ensure the consent for surgery is obtained (by the physician) and that the patient is transported to the OR as swiftly as possible.
Patient Safety and Precautions:
Absolute Contraindication: Never attempt to augment labor with oxytocin in a patient with a known uterine scar from a prior myomectomy or classical cesarean section without extreme caution and continuous monitoring in a setting prepared for immediate surgery.
Communication is Key: Use clear, closed-loop communication. When calling the physician, state: "This is Nurse [Name] in L&D. Patient Maria Jones, G2P1 at 36 weeks with prior myomectomy, is presenting with sudden tearing abdominal pain and fetal bradycardia to 80s. I palpate an abnormal uterine contour. I suspect uterine rupture. We are applying oxygen and preparing for OR. Please come immediately."
Nursing Procedure & Medication Flow
In this emergency, the "procedure" is the rapid sequence of actions leading to surgery.
Assessment Procedure: Abdominal Palpation.
Wash hands/use gloves.
With the patient supine (or slightly tilted), use the palmar surfaces of your fingers.
Systematically palpate from the fundus downward, noting uterine firmness, shape, and the location/prominence of fetal parts.
Document findings immediately: "Time 14:22. Abdomen soft, fetal parts easily palpable subcostally. Uterine fundus not clearly defined."
Medication/Vascular Access:
If no IV access: Insert two large-bore IVs immediately.
Begin an isotonic crystalloid infusion (e.g., Lactated Ringer's) wide open to treat or prevent hypovolemic shock.
Have O-negative or type-specific blood ordered and available for transfusion in the OR.
A Word from Your Senior Nurse
"Uterine rupture is one of the most terrifying emergencies in obstetrics. Your knowledge and swift, prioritized action are the difference between life and death for two patients. In the chaos of the moment, remember your ABCs adapted for OB: Assess the abdomen (and Airway), Breathing (give O2), Circulation (IV access, vitals) and Call for help/surgery. Trust your assessment. If you feel that something is profoundly wrong—like a baby that seems too easy to feel through the abdomen—escalate immediately. Don't second-guess yourself. This kind of critical thinking and decisive action is exactly what the NCLEX is testing, and more importantly, it's what makes you an invaluable nurse at the bedside."
Uterine Rupture — A full-thickness tear through the uterine wall and serosa, often at the site of a previous scar (e.g., from myomectomy or cesarean section). It is a life-threatening obstetric emergency requiring immediate surgical intervention.
Myomectomy — A surgical procedure to remove uterine fibroids (leiomyomas) while preserving the uterus. This creates a scar on the myometrium, which is a significant risk factor for uterine rupture in subsequent pregnancies, especially during labor.
Fetal Bradycardia — A sustained fetal heart rate (FHR) below 110 beats per minute. Sudden, profound, and prolonged bradycardia is a cardinal sign of acute fetal compromise, as seen in catastrophic events like uterine rupture or severe placental abruption.
Pathognomonic Sign — A sign or symptom that is so characteristic of a particular disease that it can be used to make a definitive diagnosis. In uterine rupture, the ability to palpate fetal parts easily through the abdominal wall is considered a pathognomonic finding.
Obstetric Emergency — A sudden, serious complication arising during pregnancy, labor, or the postpartum period that threatens the life or health of the mother and/or fetus. Examples include uterine rupture, placental abruption, amniotic fluid embolism, and postpartum hemorrhage.