A pregnant client at 32 weeks gestation is admitted to the l… | 마이메르시 MyMerci
Maternal Newborn Health
문제

A pregnant client at 32 weeks gestation is admitted to the labor and delivery unit with suspected placental abruption. Which assessment finding would be the priority for the nurse to monitor?

해설
In placental abruption, fetal heart rate monitoring is the priority because compromised placental blood flow leads to immediate fetal hypoxia risk. Other assessments (maternal vital signs, contractions, bleeding) are secondary as the fetus cannot compensate like the mother.

심화 해설

Core Nursing Explanation Key Concept Analysis: This question assesses the nurse's ability to prioritize assessments in a critical obstetric emergency: Placental abruption (Abruptio placentae). The core pathophysiology is the premature separation of the placenta from the uterine wall, which disrupts the fetal oxygen supply. The primary threat is acute fetal hypoxia and distress, which can lead to fetal demise within minutes. While maternal status is critically important, the fetus has no compensatory mechanisms and is in immediate, life-threatening danger.

Answer Rationale: Key Point! The priority assessment is Fetal heart rate (FHR) pattern and variability. Continuous electronic fetal monitoring (EFM) is essential to detect signs of fetal compromise, such as late decelerations, bradycardia, or loss of variability, which indicate hypoxia. The nurse's immediate action is to assess and safeguard fetal well-being, as interventions (like emergency cesarean section) are dictated by the fetal status.

Distractor Analysis:
Watch out for confusion! Option ②, Maternal blood pressure and pulse rate, is crucial for assessing maternal shock from concealed hemorrhage, but it is a simultaneous secondary priority. The mother has compensatory mechanisms (tachycardia, vasoconstriction); the fetus does not.
Option ③, Uterine contraction frequency and intensity, is assessed but is not the priority. In abruption, the uterus may become "woody hard" or tetanic, but this finding supports the diagnosis rather than being the primary monitoring focus.
Option ④, Vaginal bleeding amount and characteristics, can be misleading. In placental abruption, bleeding may be concealed (retroplacental) and not reflect the true volume of blood loss. Relying solely on visible bleeding underestimates the severity.

Related Concepts: This scenario tests the ABC (Airway, Breathing, Circulation) priority framework applied to the maternal-fetal unit. For the fetus, the "airway" and oxygen supply is the umbilical cord and placenta. When that supply is disrupted, fetal assessment becomes the primary "A." Understanding the difference between placental abruption and placenta previa is also critical, as the priority and management differ.

Concept Summary
ConceptKey Point
Placental Abruption PathoPremature separation → disrupted fetal gas exchange → acute fetal hypoxia.
Priority AssessmentFetal Heart Rate (FHR) via continuous monitoring.
Maternal AssessmentVital signs for shock (tachycardia, hypotension), uterine tone, pain.
Key Nursing ActionInitiate EFM, position mother in left lateral tilt, administer O2, prepare for possible emergency delivery.

Side-by-Side Comparison!
AssessmentPlacental Abruption (This Case)Placenta Previa (For Contrast)
BleedingMay be concealed or dark. Uterus is tense/tender.Bright red, painless bleeding. Uterus is soft, non-tender.
PainSudden, severe abdominal/back pain.Usually painless.
Fetal PriorityKey Point! HIGH - Immediate hypoxia risk.Monitor for distress, but initial priority is often controlling maternal hemorrhage.
Nursing ActionContinuous FHR monitoring, prepare for emergency C-section.No vaginal exams, bed rest, monitor bleeding, prepare for possible C-section.

Anatomy, Physiology & Pharmacology PointsPhysiology: The placenta is the fetus's lifeline for oxygen (O2) and nutrient exchange. Separation cuts off this supply. The fetus has limited glycogen stores and cannot tolerate prolonged hypoxia. • Pharmacology: If delivery is imminent and the fetus is preterm, corticosteroids (e.g., betamethasone) may be given to accelerate fetal lung maturity, but this does not override the need for immediate delivery in severe abruption.

Memory TipsAcronym: ABRUPTION = Assess Baby Rapidly, Urgent Priority is The fetus (Immediate Oxygen Need). • Think: "The baby is breathing through the placenta. If the placenta detaches, the baby is 'drowning.' Check the baby's 'pulse' (FHR) first!"

High-Frequency NCLEX Topics Placental abruption is a classic NCLEX priority question. The exam tests your ability to distinguish between maternal and fetal priorities in obstetric emergencies. Remember: When the placenta fails, the fetus is first. Questions often combine this with signs/symptoms (dark bleeding, pain, rigid uterus) and nursing interventions (left lateral position, oxygen, IV access).

Watch Out for Question Variations! • Variation 1: "The nurse notes late decelerations on the EFM strip. What is the priority action?" (Answer: Administer oxygen, increase IV fluids, reposition, and notify the provider—treating the cause of fetal hypoxia.) • Variation 2: "Which client is at highest risk for placental abruption?" (Answer: Client with hypertension, trauma, cocaine use, or premature rupture of membranes.) • Variation 3: Shifting from assessment to intervention: "After confirming fetal bradycardia, the nurse should prepare the client for what procedure?" (Answer: Emergency cesarean section.)

임상 시나리오

Nursing Clinical Practice Guide Clinical Scenario: You are the nurse in Labor & Delivery. A 32-year-old G2P1 at 32 weeks arrives via ambulance complaining of sudden, severe abdominal pain and feeling faint. She has a history of chronic hypertension. Her abdomen is rigid and tender to touch.

Nursing Intervention Strategy: 1. Immediate Assessment (First 2 minutes): Apply the EFM transducer to obtain a continuous FHR tracing. Simultaneously, have another nurse or assistant obtain maternal vital signs and establish two large-bore IV lines. 2. Positioning & Oxygen: Place the client in a left lateral tilt position to maximize placental perfusion. Administer oxygen via non-rebreather mask at 10-15 L/min to increase maternal-fetal oxygen saturation. 3. Monitoring & Documentation: Continuously monitor FHR for signs of distress (bradycardia, late or variable decelerations, loss of variability). Quantify vaginal bleeding (pad count, weigh pads). Assess uterine tone frequently—it may become board-like. 4. Communication & Preparation: Notify the obstetrician and anesthesia team immediately. Prepare for emergency cesarean delivery: ensure the operating room is ready, obtain informed consent, and administer preoperative medications as ordered.

Patient Safety and Precautions: • Do NOT perform a vaginal examination if placenta previa has not been ruled out by ultrasound. In abruption, an exam may not be contraindicated but should be done cautiously by the provider. • Monitor for Disseminated Intravascular Coagulation (DIC): Abruption releases thromboplastin, which can trigger DIC. Monitor for signs of abnormal bleeding from IV sites, gums, or in urine. • Fluid Resuscitation: Administer IV crystalloids (e.g., Lactated Ringer's) and blood products as ordered to treat maternal hypovolemic shock, but be mindful of fluid overload, especially if the client has hypertension.

Nursing Procedure & Medication Flow Procedure: Initiating Continuous Electronic Fetal Monitoring (EFM) 1. Explain the procedure to the client. 2. Place the ultrasound transducer (for FHR) on the maternal abdomen where the FHR is loudest. 3. Place the tocodynamometer (for contractions) over the uterine fundus. 4. Ensure both signals are clear and the paper is running. Interpret the baseline FHR, variability, and presence of accelerations or decelerations.
Medication: Corticosteroids (if time allows)Drug: Betamethasone 12 mg IM x 2 doses 24 hours apart. • Purpose: To promote fetal lung maturity if delivery is anticipated between 24 and 34 weeks. • NCLEX Point: This is a supportive measure but does not delay emergency delivery for fetal distress.

A Word from Your Senior Nurse "In the chaos of an abruption, your calm, prioritized actions save two lives. Your first move is to 'find the baby' on the monitor. That strip of paper is your direct line to the fetus's well-being. While you're doing that, your team is addressing the mom. This is the essence of obstetric nursing: dual vigilance. On the NCLEX, they want to see that you know the fetus is the most vulnerable patient in the room. In clinicals, you'll feel the tension of a rigid abdomen and see the fear in a mother's eyes. Let your knowledge guide your hands—assess the FHR, tilt her left, give her oxygen. You've got this."

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