A 28-year-old gravida 3, para 2 client at 34 weeks gestation presents to the labor and delivery unit with sudden onset of severe abdominal pain and vaginal bleeding. Which assessment finding would be most indicative of placental abruption?
1Board-like rigid abdomen with absent fetal heart tones✓ 정답
2Bright red, painless vaginal bleeding with soft abdomen
3Intermittent cramping pain with pink-tinged mucus discharge
4Lower abdominal pressure with clear amniotic fluid leakage
해설
Board-like rigid abdomen with absent fetal heart tones indicates severe placental abruption with complete separation and fetal compromise. Other options describe placenta previa (bright red, painless bleeding), early labor (intermittent cramping), or PROM (clear fluid leakage).
Core Nursing ExplanationKey Concept Analysis: This question assesses the critical differentiation between two major causes of third-trimester bleeding: Placental abruption (Abruptio placentae) and Placenta previa. The core theme is recognizing the classic, life-threatening presentation of a severe abruption. In abruption, the placenta prematurely separates from the uterine wall, causing hemorrhage that forms a retroplacental clot. This leads to intense pain and uterine irritability. In severe cases, blood infiltrates the uterine muscle, causing Couvelaire uterus, which presents as a hard, board-like, and tender abdomen. Fetal distress or demise is common due to the acute loss of placental function.
Answer Rationale: Key Point! The combination of "sudden onset severe abdominal pain" and "board-like rigid abdomen" is the hallmark of placental abruption. The "absent fetal heart tones" indicates a catastrophic, complete separation leading to fetal demise, which is a dire complication of abruption. This triad of symptoms (pain, rigidity, fetal compromise) is pathognomonic for a severe abruption and is the most indicative finding among the options.
Distractor Analysis:
Watch out for confusion! Option ② describes classic Placenta previa. The bleeding is typically bright red and painless because the placenta is implanted over the cervical os, and separation is caused by cervical dilation or stretching, not a painful tearing away from the uterine wall. The abdomen remains soft.
Option ③ describes signs of early labor or bloody show. The "pink-tinged mucus" is the mucus plug, and intermittent cramping is consistent with uterine contractions, not the constant, severe pain of an abruption.
Option ④ describes Premature Rupture of Membranes (PROM). The leakage of clear amniotic fluid and feeling of pressure are unrelated to the painful bleeding scenario of an abruption.
Related Concepts: Management of placental abruption is an obstetric emergency. Nursing priorities include: ABCs (Airway, Breathing, Circulation), establishing large-bore IV access for fluid and blood resuscitation, continuous fetal and maternal monitoring, preparing for immediate cesarean delivery, and monitoring for complications like Disseminated Intravascular Coagulation (DIC) due to the release of thromboplastin from the damaged placenta.
Concept Summary
Condition
Key Feature
Bleeding Character
Pain
Uterine Tone
Placental Abruption
Premature separation
Dark, may be concealed
Sudden, severe, constant
Board-like, rigid, tender
Placenta Previa
Placenta over cervical os
Bright red, painless
Usually absent
Soft, non-tender
Labor / Bloody Show
Cervical changes
Pink-tinged mucus
Intermittent cramping
Intermittent contractions
PROM
Rupture of membranes
Clear fluid leakage
Pressure, not severe pain
Normal
Side-by-Side Comparison!
Aspect
Placental Abruption (Abruptio Placentae)
Placenta Previa
Pathophysiology
Premature separation of a normally implanted placenta.
Abnormal implantation of placenta in the lower uterine segment, covering the cervical os.
Classic Presentation
"Painful bleed." Sudden onset, severe constant pain, dark or concealed bleeding, rigid uterus.
"Painless bleed." Bright red bleeding, often provoked, soft non-tender uterus.
Risk Factors
Hypertension (chronic or preeclampsia), trauma, cocaine use, smoking, multiparity, PROM.
Often distressed or demised due to acute loss of perfusion.
Usually stable unless bleeding is massive; position may be breech/transverse.
Diagnostic Method of Choice
Clinical diagnosis (ultrasound can miss it).
Transvaginal ultrasound for localization.
Management Principle
Emergency! Immediate delivery (often C-section), stabilize mother for shock/DIC.
Expectant management if stable & preterm; delivery via C-section at term or if bleeding is uncontrollable.
Anatomy, Physiology & Pharmacology Points
Anatomy: The placenta is attached to the uterine wall via the decidua basalis. In abruption, shear forces or vascular rupture cause separation at this interface.
Physiology: The pain and rigidity are due to uterine muscle irritation and infiltration by blood (Couvelaire uterus). The bleeding can be revealed (visible vaginally), concealed (trapped behind placenta), or mixed.
Pharmacology: Corticosteroids (e.g., betamethasone) may be given if delivery can be delayed briefly for fetal lung maturity in a stable, minor abruption. Magnesium sulfate may be used for neuroprotection if preterm delivery is imminent. Blood products (PRBCs, FFP, platelets) are critical for resuscitation if DIC develops.
Previa = NO PAIN: No pain, Only bright red bleeding.
Mnemonic: "ABRUPTion is PAINFUL and ABRUPT."
High-Frequency NCLEX Topics
This is a classic NCLEX differentiation question. You will almost certainly be tested on distinguishing abruption from previa based on the presence/absence of pain and the character of bleeding. NCLEX also loves to test the priority nursing actions for each condition (e.g., for previa: NO vaginal exams; for abruption: monitor for shock and DIC).
Watch Out for Question Variations!
Symptom Identification → Priority Intervention: "The nurse notes a board-like abdomen in a client with third-trimester bleeding. What is the priority action?" (Answer: Notify the provider STAT, assess vital signs/FHR, prepare for emergency delivery).
Risk Factor Identification: "Which client is at greatest risk for placental abruption?" (Look for hypertension, trauma, cocaine use).
Complication Recognition: "A client with severe placental abruption is at high risk for developing which condition?" (Answer: Disseminated Intravascular Coagulation (DIC)).
Nursing Clinical Practice GuideClinical Scenario: You are the nurse in triage. A 34-week pregnant patient is brought in by her partner. She is pale, diaphoretic, clutching her abdomen, and crying, "The pain came out of nowhere!" You see a small amount of dark red vaginal blood on her clothing.Nursing Intervention Strategy:
1Immediate Assessment (ABCs)* Airway/Breathing: Ensure patient is able to speak. Administer oxygen via non-rebreather mask at 10-15 L/min to maximize fetal oxygenation.
* Circulation: Check radial pulse (likely tachycardic), BP (may be hypotensive), and capillary refill. Feel her abdomen – it is hard as a board and she screams when you palpate.
* Fetal Status: Apply external fetal monitor (EFM) immediately. You may find late decelerations, bradycardia, loss of variability, or absent FHR.
2Critical Actions* Call for Help: Activate the obstetric emergency team. Notify the provider STAT.
* IV Access: Establish two large-bore (18-gauge or larger) IV lines. Begin aggressive isotonic crystalloid (Normal Saline or Lactated Ringer's) infusion.
* Monitoring: Place on continuous maternal cardiac, pulse oximetry, and fetal monitoring. Insert indwelling urinary catheter (Foley) to monitor strict I&O and kidney perfusion.
* Labs: Draw stat labs: CBC, coagulation panel (PT/PTT/INR, fibrinogen, D-dimer), type and crossmatch for 4+ units of blood.
3Preparation for DeliveryThe decision will likely be for an emergency cesarean section. Prepare the patient physically (NPO, consent) and emotionally (brief, clear explanations). Transport to OR.
Patient Safety and Precautions:
* DO NOT perform a vaginal or speculum exam if placental abruption or previa is suspected, as it can provoke catastrophic hemorrhage, especially in previa.
* Monitor for DIC: Watch for signs of abnormal bleeding from IV sites, gums, or increasing vaginal bleeding. Report a fibrinogen level < 150 mg/dL (Normal: 200-400 mg/dL) immediately.
* Positioning: Position in left lateral tilt to prevent supine hypotensive syndrome and optimize placental blood flow.
Nursing Procedure & Medication FlowEmergency Response for Suspected Abruption:
1. Assess: Pain, bleeding, uterine tone, FHR, maternal VS.
2. Activate: Call OB team, anesthesia, NICU.
3. Access: Two large-bore IVs.
4. Administer: Oxygen, IV fluids. Administer blood products per order if signs of hemorrhagic shock or DIC.
5. Anticipate: Emergency C-section. Prepare OR, consent, notify blood bank.
A Word from Your Senior Nurse
"Trust your assessment! That 'board-like' abdomen is a tactile finding you will never forget once you feel it. In an emergency like this, your calm, systematic response is what saves lives. You are the eyes, ears, and hands gathering the critical data for the team. When studying, don't just memorize 'abruption = painful.' Understand why it's painful (blood tearing into the muscle) and what that means for mom and baby (shock, hypoxia). This depth of understanding turns textbook knowledge into the clinical judgment you'll need at the bedside and on the NCLEX."
Placental Abruption (Abruptio Placentae) — The premature separation of a normally implanted placenta from the uterine wall before delivery of the fetus, often causing painful bleeding and uterine rigidity.
Placenta Previa — A condition where the placenta implants over or near the internal cervical os, typically causing painless, bright red vaginal bleeding in the third trimester.
Couvelaire Uterus — A pathological finding in severe placental abruption where blood infiltrates the uterine myometrium, causing a hard, board-like, and discolored uterus.
Disseminated Intravascular Coagulation — A life-threatening coagulopathy complication of severe abruption, where systemic clotting and bleeding occur simultaneously due to release of thromboplastin.
Fetal Heart Tones — The audible heartbeat of the fetus, monitored via Doppler or electronic fetal monitor. Absence indicates fetal demise, a potential consequence of complete placental separation.