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, temp 98.6°F. The fetal heart rate shows late decelerations with decreased variability. What is the most critical assessment the nurse should perform first?
1Perform a sterile vaginal examination to assess cervical dilation
2Assess the characteristics and amount of vaginal bleeding✓ 정답
3Obtain a clean-catch urine specimen for protein analysis
4Measure fundal height and perform Leopold's maneuvers
해설
Assessing vaginal bleeding characteristics and amount is critical to determine hemorrhage severity and guide immediate management in this emergency with maternal hypotension, tachycardia, and fetal distress. Other options are less urgent or contraindicated in active bleeding.
Core Nursing ExplanationKey Concept Analysis: This question assesses the nurse's ability to prioritize assessments in a high-risk obstetric emergency. The patient presents with classic signs of a potential Placental abruption (sudden severe abdominal pain, vaginal bleeding, maternal shock signs, and fetal distress). The core principle is the ABC (Airway, Breathing, Circulation) priority framework, adapted for the pregnant patient. The primary threat is Key Point!hypovolemic shock from hemorrhage, indicated by hypotension (BP 90/60 mmHg) and tachycardia (HR 120 bpm). The first assessment must directly evaluate the source and severity of the bleeding.
Answer Rationale: Key Point! Option ②, "Assess the characteristics and amount of vaginal bleeding," is the correct first action. This assessment directly evaluates the Circulation status. Quantifying blood loss (e.g., saturating pads per hour) and noting the color (bright red vs. dark) provides immediate, critical data to determine the acuity of the hemorrhage and guide resuscitation efforts (e.g., fluid bolus, blood transfusion preparation, urgency of delivery).
Distractor Analysis:
Option ① (Perform a sterile vaginal exam): Watch out for confusion! In a patient with suspected placenta previa, a vaginal exam is absolutely contraindicated as it can cause catastrophic hemorrhage. While abruption does not carry the same absolute contraindication, in the context of active bleeding and instability, the priority is to assess and stabilize circulation, not to perform an invasive procedure that could worsen the situation or delay critical interventions.
Option ③ (Obtain urine for protein): This assesses for preeclampsia, which can be associated with abruption. However, it is a diagnostic, not an immediate life-saving assessment. The patient is showing signs of shock; checking urine protein does not address the imminent threat to mother and fetus.
Option ④ (Measure fundal height/Leopold's maneuvers): While assessing uterine size and fetal position is important, it is secondary to assessing active hemorrhage. Furthermore, in a suspected abruption, the uterus may be tender and rigid (a finding known as Couvelaire uterus), and palpation could be painful and is less urgent than quantifying blood loss.
Related Concepts: This scenario integrates knowledge of obstetric emergencies (Placental abruption vs. Placenta previa), principles of shock management, and fetal monitoring interpretation (Late decelerations indicate uteroplacental insufficiency, and decreased variability is a concerning sign of fetal compromise).Nursing Clinical Practice GuideClinical Scenario: You are the triage nurse in Labor & Delivery. A patient is rushed in by her partner, clutching her abdomen. She is pale, anxious, and reports a gush of blood. Her vital signs are unstable, and the monitor shows a distressed fetal heart pattern.
Nursing Intervention Strategy:
Immediate Action (First 2-5 minutes):
Shout for help and activate the obstetric emergency protocol (e.g., "Code OB").
While helping the patient to a bed, visually assess the perineum/pad for amount of bleeding.
Apply high-flow oxygen via non-rebreather mask.
Establish two large-bore IV lines (16- or 18-gauge) and initiate a rapid isotonic crystalloid bolus (e.g., Normal Saline or Lactated Ringer's).
Quantify bleeding: Weigh pads/chux, document color and presence of clots.
Assess pain level and location.
Palpate the uterus for tenderness, rigidity, and resting tone.
Document the time of onset and sequence of symptoms.
Collaborative Care:
Notify the obstetrician and anesthesia team immediately.
Prepare for emergency cesarean delivery: consent, lab draws (CBC, type and crossmatch for 4+ units of blood, coagulation panel), and preoperative preparation.
Administer medications as ordered (e.g., Rhogam if Rh-negative, tocolytics if appropriate and delivery is not immediate).
Patient Safety and Precautions:
Never leave the unstable patient alone.
In any third-trimester bleeding, assume placenta previa until proven otherwise by ultrasound and avoid vaginal exams unless specifically ordered by the physician and the patient is in a fully equipped setting for immediate cesarean section.
Monitor for signs of Disseminated Intravascular Coagulation (DIC), a potential complication of severe abruption (watch for bleeding from IV sites, gums, or oozing).
Nursing Procedure & Medication FlowProcedure: Managing Active Obstetric Hemorrhage
1. Call for Help & Position: Place patient in left lateral tilt to optimize venous return and placental perfusion.
2. Assess & Document Bleeding: Use a standardized quantitative blood loss (QBL) method. Note: "Heavy" is not a measurement; "500 mL saturating 3 pads in 10 minutes" is.
3. IV Access & Fluids: Use pressure bags to achieve rapid infusion. Anticipate the need for blood products.
4. Continuous Monitoring: Fetal heart rate and maternal vital signs every 5 minutes or continuously.
5. Prepare for OR: Have emergency delivery tray, neonatal resuscitation equipment, and massive transfusion protocol ready.
A Word from Your Senior Nurse
"In obstetric emergencies, seconds count for two lives. Your first job isn't to diagnose—it's to recognize 'this is bad' and act to support circulation and oxygenation. That pad check you do in the first 30 seconds tells the team more than any lab value initially. Always think: Airway, Breathing, Circulation, and in OB, we add Disability (neurologic status) and Exposure (assess the source of bleeding). This ABCDE mindset will keep you focused when everything feels chaotic."
Placental Abruption — Premature separation of the placenta from the uterine wall before delivery. Presents with sudden, severe abdominal pain, dark or bright red vaginal bleeding, uterine tenderness/rigidity, and fetal distress. Can lead to maternal shock and DIC.
Placenta Previa — Implantation of the placenta over or near the internal cervical os. Presents with painless, bright red vaginal bleeding in the third trimester. Vaginal examination is contraindicated.
Late Decelerations — A pattern on the fetal heart rate (FHR) monitor where the deceleration begins at the peak of the contraction and recovers after the contraction ends. Indicates uteroplacental insufficiency and fetal hypoxia.
Hypovolemic Shock — A life-threatening condition where severe blood or fluid loss makes the heart unable to pump enough blood to the body. Signs include hypotension, tachycardia, tachypnea, cool/clammy skin, and altered mental status.
Quantitative Blood Loss — An objective method of measuring blood loss during childbirth (e.g., weighing sponges/pads, using calibrated drapes). It is more accurate than visual estimation and is critical for early recognition of postpartum hemorrhage.