A 28-year-old woman at 36 weeks gestation presents to the emergency department with sudden onset of severe abdominal pain and vaginal bleeding. Her vital signs show blood pressure 90/60 mmHg, heart rate 120 bpm, and respirations 24/min. The fetal heart rate shows late decelerations with decreased variability. What is the nurse's highest priority action?
1Prepare the patient for immediate cesarean delivery
2Establish large-bore IV access and initiate fluid resuscitation✓ 정답
3Position the patient in left lateral recumbent position
4Administer oxygen via non-rebreather mask at 10-15 L/min
해설
With maternal shock (hypotension, tachycardia) and fetal distress, establishing large-bore IV access and fluid resuscitation is the priority to stabilize maternal circulation before surgical intervention.
Core Nursing ExplanationKey Concept Analysis: This question presents a classic scenario of a Placental abruption (Abruptio placentae) with maternal and fetal compromise. The core theme is determining the priority nursing action in an obstetric emergency where both the mother and fetus are in distress. The pathophysiology involves premature separation of the placenta from the uterine wall, leading to concealed or revealed hemorrhage, maternal hypovolemic shock, and compromised uteroplacental blood flow causing fetal hypoxia and distress.
Answer Rationale: The correct answer is ② Establish large-bore IV access and initiate fluid resuscitation. The patient's vital signs (BP 90/60 mmHg, HR 120 bpm) indicate Key Point!Hypovolemic shock secondary to acute blood loss. In any emergency, the ABC (Airway, Breathing, Circulation) framework guides priority actions. While the fetus is in distress (late decelerations, decreased variability), the mother's circulatory collapse must be addressed first. A stable mother is a prerequisite for a viable fetal outcome and for safely proceeding with any surgical intervention like a cesarean delivery. Establishing IV access and starting aggressive fluid resuscitation with crystalloids (e.g., Lactated Ringer's or Normal Saline) is the immediate action to restore perfusion and prevent maternal cardiac arrest.
Distractor Analysis:
Watch out for confusion! Option ① (Prepare for cesarean delivery): While an emergency cesarean is almost certainly indicated, the nurse's immediate priority is to stabilize the mother. The surgical team cannot safely operate on a patient in profound shock. Preparation can occur concurrently, but active resuscitation is the first action.
Option ③ (Left lateral position): This is a correct intervention for improving uteroplacental perfusion by displacing the uterus off the maternal great vessels (aorta and inferior vena cava). However, it is a supportive measure that does not treat the underlying cause of shock—hypovolemia.
Option ④ (Administer oxygen): Maximizing oxygenation is crucial for both mother and fetus, especially with fetal distress. However, in hypovolemic shock, oxygen delivery is limited by poor circulation. Fluids must be given to carry that oxygen to tissues. Oxygen is a simultaneous, not a preceding, intervention.
Related Concepts: This scenario integrates knowledge of Placental abruption risk factors (hypertension, trauma, cocaine use, advanced maternal age), signs of Fetal distress (late decelerations indicate uteroplacental insufficiency; decreased variability indicates fetal CNS depression), and the principles of Maternal Resuscitation which always takes precedence.
Usually painless bleeding. Uterus is soft, non-tender.
Bleeding
Can be concealed (internal) or revealed (vaginal). Dark red blood.
Bright red, painless vaginal bleeding, often recurrent.
Fetal Status
Often distressed early due to placental separation.
Often normal unless bleeding is massive.
Nursing Action
Emergency: Stabilize mother for imminent delivery.
Conservative: Bed rest, monitor, prepare for possible C-section at term.
Anatomy, Physiology & Pharmacology Points
Physiology: In late pregnancy, the uterus receives up to 20-30% of maternal cardiac output. Abruption causes rapid blood loss into this vascular space and the uterine muscle, leading to Couvelaire uterus (blood infiltrates the myometrium).
Pharmacology: Initial fluid resuscitation uses isotonic crystalloids (e.g., Lactated Ringer's). Blood products (packed red blood cells, fresh frozen plasma) will be needed. Watch out for confusion! Avoid medications that cause vasoconstriction (like some pressors) as they can further reduce placental perfusion.
Memory Tips
ABCs for Two: Remember, in obstetrics, you're caring for two patients, but the rule is "Resuscitate the mother to resuscitate the fetus." Stable mom = chance for baby.
Abruption Action: Think "BAD": Bleeding, Abdominal pain, Distress (maternal & fetal). Priority is "IV FIRST" to fix the B (bleeding/shock).
High-Frequency NCLEX Topics
NCLEX frequently tests priority-setting in emergencies. Obstetric hemorrhages (abruption, previa, postpartum) are classic high-yield scenarios. The exam wants you to apply the ABC framework and understand that treating maternal shock is the gateway to all other interventions, including delivery.
Watch Out for Question Variations!
If the question described a stable mother (normal vitals) with fetal distress, the priority might shift to intrauterine resuscitation (position, oxygen, IV fluids, possibly tocolytics) and preparation for delivery.
The question could ask for the priority assessment after initiating IV fluids (Answer: Continue to monitor maternal blood pressure and fetal heart rate).
It could also test knowledge of complications of abruption, such as Disseminated Intravascular Coagulation (DIC).
Nursing Clinical Practice GuideClinical Scenario: You are the triage nurse in Labor & Delivery. A patient is rushed in by her partner, crying out in pain. She is pale, diaphoretic, and clutching her abdomen. You quickly obtain the history and vitals as described.
Nursing Intervention Strategy:
Immediate Action (Your Priority): Shout for help. While guiding the patient to a bed, direct a colleague to Key Point!establish two large-bore (16- or 18-gauge) IV lines and initiate a rapid infusion of Lactated Ringer's solution. Simultaneously, apply a non-rebreather mask at 15 L/min.
Assessment & Monitoring: Place the patient in a left lateral tilt (or manually displace the uterus). Apply continuous electronic fetal monitoring (EFM) and automatic blood pressure monitoring every 5 minutes. Insert a Foley catheter to monitor urine output (goal >30 mL/hr).
Preparation & Communication: Alert the obstetrician, anesthesiologist, and operating room (OR) team STAT. Draw stat labs: CBC, coagulation panel (PT/PTT, fibrinogen, D-dimer), type and crossmatch for 4+ units of blood. Have O-negative blood available if crossmatched blood is delayed.
Ongoing Care: Continuously reassess for signs of worsening shock (falling BP, rising HR, decreasing consciousness) and prepare for emergency cesarean section. Provide clear, calm explanations to the patient and family.
Patient Safety and Precautions:
Do NOT perform a vaginal exam until placenta previa is ruled out by ultrasound. A digital exam in a previa can cause catastrophic hemorrhage.
Monitor closely for signs of Disseminated Intravascular Coagulation (DIC)—uncontrolled bleeding from IV sites, gums, etc. This is a life-threatening complication of severe abruption.
During transport to the OR, maintain left lateral tilt and continue IV fluids and oxygen.
Nursing Procedure & Medication FlowProcedure: Establishing Large-Bore IV Access in an Emergency
Select the largest vein possible (antecubital fossa is ideal). Use a 16- or 18-gauge IV catheter.
Connect to IV tubing with a wide-bore, non-kinkable extension set.
Use a pressure bag to inflate to 300 mmHg for rapid fluid administration.
Initial fluid bolus: 1-2 liters of warmed isotonic crystalloid as rapidly as possible.
Anticipate and prepare for blood transfusion. Use a blood warmer for massive transfusion.
A Word from Your Senior Nurse
"Scenes like this are why we drill our emergency protocols. Your ability to act swiftly and correctly in the first few minutes directly impacts two lives. Remember, panic is contagious, but so is calm competence. When you see hypotension and tachycardia in a pregnant patient, your brain should immediately scream 'BLEEDING!' until proven otherwise. Mastering these priorities isn't just for the NCLEX; it's the muscle memory that will make you a rock-solid nurse in a real-life crisis. You've got this!"
Placental Abruption (Abruptio Placentae) — The premature separation of the placenta from the uterine wall after 20 weeks of gestation and before delivery. It is a leading cause of vaginal bleeding in the second half of pregnancy and a major obstetric emergency.
Hypovolemic Shock — A life-threatening condition caused by a rapid loss of blood or body fluids, leading to inadequate perfusion of organs. Signs include hypotension, tachycardia, tachypnea, cool/clammy skin, and altered mental status.
Late Decelerations — A pattern on the fetal heart rate (FHR) monitor characterized by a gradual decrease in FHR beginning after the peak of a uterine contraction and returning to baseline after the contraction ends. It indicates uteroplacental insufficiency and fetal hypoxia.
Left Lateral Recumbent Position — A positioning technique where the pregnant patient lies on her left side. This displaces the uterus off the maternal inferior vena cava and aorta, improving venous return, cardiac output, and uteroplacental blood flow.
Disseminated Intravascular Coagulation — A pathological activation of the coagulation system leading to widespread microvascular thrombosis and simultaneous consumption of clotting factors and platelets, resulting in severe bleeding. It is a potential complication of massive placental abruption.