A primigravida at 41 weeks gestation is in early labor and requests epidural anesthesia for pain management. Which nursing intervention should be implemented first before epidural placement?

Preloading with IV fluids before epidural placement is essential to prevent maternal hypotension, the most common complication. Other actions like consent, positioning, or fetal monitoring are important but secondary to fluid administration.

Core Nursing Explanation Key Concept Analysis: This question tests the priority nursing action before administering Epidural anesthesia to a laboring patient. The core pathophysiological principle is the prevention of Maternal hypotension. Epidural anesthesia blocks sympathetic nerves, causing vasodilation and a drop in blood pressure. This hypotension can severely reduce Uteroplacental perfusion, leading to Fetal bradycardia and distress. Therefore, the priority is to preemptively expand the intravascular volume to counteract this expected vasodilation.

Answer Rationale: Key Point! Administering a fluid bolus of 500-1000 mL of isotonic crystalloid (like Lactated Ringer's) is the first and most critical intervention before epidural placement. This action directly addresses the primary risk by increasing preload and cardiac output, helping to maintain maternal blood pressure and, consequently, fetal oxygenation. This is a standard, evidence-based protocol to enhance patient safety.

Distractor Analysis:
① Watch out for confusion! While Informed consent is an absolute ethical and legal requirement, it is typically obtained by the anesthesia provider (anesthesiologist or CRNA) as part of their procedural preparation. The nurse's priority in the immediate pre-procedure phase is to perform the safety intervention (fluid bolus) to prepare the patient's physiological state.
③ Positioning in the Left lateral position is crucial for preventing Supine hypotensive syndrome (aortocaval compression) during pregnancy. However, this is usually done during and after the epidural placement and for continuous monitoring, not necessarily as the very first action before starting the procedure. The fluid bolus initiates the physiological preparation.
④ Assessing the Fetal heart rate (FHR) pattern is essential to establish a baseline before any intervention. A 20-minute strip is ideal. However, in the context of "implemented first," initiating the fluid bolus takes precedence because it is a proactive measure to prevent a problem that hasn't occurred yet. FHR monitoring is an assessment, while the fluid bolus is a preventive intervention. In practice, these often happen concurrently, but the NCLEX prioritizes the action that directly prevents the most common and dangerous complication.

Related Concepts: The sequence of care here follows the nursing process and safety principles: Prevent harm first (fluid bolus), then ensure proper consent and positioning, while continuously assessing maternal and fetal status. Understanding the mechanism of epidural-induced hypotension is key to prioritizing interventions.
Concept Summary

Concept	Explanation	NCLEX Relevance
Epidural Anesthesia	Regional analgesia blocking pain from T10 to S5. Side effect: sympathetic blockade → vasodilation → hypotension.	High yield. Know pre-procedure care, monitoring, and complication management.
Maternal Hypotension	BP drop >20% from baseline or systolic 임상 시나리오 Nursing Clinical Practice Guide Clinical Scenario: You are the labor nurse for Maria, a 25-year-old G1P0 at 41 weeks. She is 4 cm dilated and requesting an epidural. The anesthesiologist has been called. The IV is already in place with Lactated Ringer's running at 125 mL/hr. Nursing Intervention Strategy: Immediate Action (First): Increase the IV rate to a wide-open "bolus" rate (e.g., 999 mL/hr) to infuse 500-1000 mL of LR over 15-30 minutes before the epidural is placed. Document the start time and volume. Concurrent Assessment: While the fluid is running, ensure continuous electronic fetal monitoring (EFM) is on and obtain a 20-minute strip to document a reassuring baseline FHR (category I). Preparation & Teamwork: Assist the patient into a sitting or left lateral position for the procedure as directed by the anesthesiologist. The anesthesia provider will obtain the informed consent. Your role is to support the patient and ensure safety. Post-placement Monitoring: After the epidural catheter is placed and the test dose given, you will monitor maternal blood pressure and FHR every 2-5 minutes for the first 15-30 minutes, then every 15-30 minutes thereafter, or per protocol. Patient Safety and Precautions: Contraindications: Verify no contraindications exist (e.g., patient refusal, coagulopathy, infection at site, increased intracranial pressure). Hypotension Management: If BP drops >20% from baseline or systolic is 핵심 개념 Epidural Anesthesia — Regional analgesia administered into the epidural space to block pain from T10 to S5. A common side effect is sympathetic blockade leading to vasodilation and maternal hypotension. Maternal Hypotension — A drop in systolic blood pressure greater than 20% from baseline or below 100 mmHg. It is the most common complication of neuraxial anesthesia in obstetrics and can compromise uteroplacental perfusion. Fluid Preload / Bolus — The administration of 500-1000 mL of isotonic intravenous fluid (e.g., Lactated Ringer's) prior to epidural placement to expand intravascular volume and help prevent hypotension. Uteroplacental Perfusion — The blood flow from the mother to the placenta, which is essential for fetal oxygenation and nutrient exchange. It is directly dependent on adequate maternal blood pressure. Supine Hypotensive Syndrome (Aortocaval Compression) — A condition in late pregnancy where the gravid uterus compresses the inferior vena cava and aorta when the mother is supine, reducing venous return and cardiac output, leading to hypotension. Managed by left lateral positioning. 마이메르시로 국가고시 완벽 대비 기출문제와 상세 해설을 무료로. 내 약점을 분석하고 진도를 관리하며 더 똑똑하게 공부하세요. 무료로 시작하기 App Store Google Play 학습 참고용입니다. 실제 임상은 최신 지침과 소속 기관 프로토콜을 따르세요.