A nurse is caring for a client at 38 weeks gestation who is … | 마이메르시 MyMerci
Maternal Newborn Health
문제

A nurse is caring for a client at 38 weeks gestation who is undergoing a vacuum-assisted vaginal delivery. During the procedure, the vacuum cup detaches from the fetal head twice. What is the most appropriate nursing action?

해설
After two vacuum cup detachments, guidelines recommend discontinuation due to high risk of fetal injury (e.g., scalp trauma, hemorrhage). Other options (documenting, episiotomy, increased pushing) fail to address this safety concern and may increase harm.

심화 해설

Core Nursing Explanation Key Concept Analysis: This question tests the critical safety protocol for Vacuum-assisted vaginal delivery. The key principle is that the vacuum cup detaching from the fetal head, known as a "pop-off," is a significant warning sign. It indicates that the traction force is not being effectively transferred to the fetal skull, often due to improper placement or excessive force. After two such detachments, the risk of fetal complications—such as Cephalohematoma, Subgaleal hemorrhage (a potentially life-threatening bleed under the scalp), or scalp lacerations—increases dramatically. The nurse's primary role is patient safety advocacy.

Answer Rationale: Key Point! The correct action is to advocate for discontinuation and preparation for a Cesarean delivery (C-section). This is a standard, evidence-based guideline from organizations like the American College of Obstetricians and Gynecologists (ACOG). The rationale is that continued attempts after two pop-offs offer minimal benefit while exponentially increasing the risk of severe fetal injury. The nurse must communicate this safety concern to the provider.

Distractor Analysis:
Watch out for confusion! Option ① (Document and continue) is incorrect because documentation alone is a passive action that does not address the imminent safety risk. While documenting events is important, it must follow, not replace, the necessary intervention.
Option ② (Prepare for episiotomy) is incorrect. An Episiotomy enlarges the vaginal opening but does not address the fundamental issue of ineffective vacuum traction and the associated fetal risks. It is an inappropriate and unrelated intervention in this scenario.
Option ④ (Increase maternal pushing) is incorrect and dangerous. Encouraging more forceful pushing while the vacuum is improperly applied can lead to maternal exhaustion and does not resolve the mechanical failure of the device. It could potentially worsen fetal descent issues or injury.

Related Concepts: This scenario highlights the nurse's role as a patient advocate, especially in obstetric emergencies. It also connects to knowledge of other operative vaginal deliveries (e.g., forceps), their indications, and associated risks. Understanding the difference between minor fetal scalp trauma and major hemorrhagic events is crucial for postpartum newborn assessment. Concept Summary
ConceptKey Takeaway
Vacuum-Assisted Delivery SafetyMaximum of 3 pop-offs is an outdated rule. Current standard: discontinue after 2 detachments due to high fetal risk.
Nurse's Primary RoleSafety Advocate. Must voice concern and recommend evidence-based action to the provider.
Major Fetal RisksSubgaleal hemorrhage (medical emergency), cephalohematoma, scalp abrasions/lacerations, intracranial hemorrhage.
Post-Procedure NursingVigilant newborn assessment for signs of trauma (swelling, bruising, pallor, irritability) and neurological changes.
Side-by-Side Comparison!
Operative Vaginal Delivery MethodMechanism / IndicationKey Nursing Safety Alert
Vacuum ExtractionUses suction cup on fetal scalp to assist with traction during maternal pushing.Pop-offs: Discontinue after 2. Monitor for Chignon (temporary scalp swelling) and serious hemorrhage.
Forceps DeliveryUses metal instruments that cradle fetal head to guide and assist delivery.Proper placement is critical. Monitor for facial nerve palsy, skull fracture, or maternal perineal/rectal trauma.
Anatomy, Physiology & Pharmacology PointsFetal Scalp Anatomy: The vacuum cup is placed over the posterior fontanelle (occiput). A subgaleal hemorrhage occurs in the potential space between the galea aponeurotica (a scalp layer) and the periosteum of the skull. This space can hold a large volume of blood (up to half of a newborn's total blood volume), leading to hypovolemic shock. • Physiological Mechanism of Injury: Repeated pop-offs cause shearing forces that can tear emissary veins bridging the scalp layers, leading to the rapid accumulation of blood. Memory TipsMnemonic: "POP Off = Prepare Other Plan" (After 2 POP-offs, prepare for an Other delivery Plan - C-section). • Think of it like a suction cup on a window: if it pops off twice, it's not sticking properly. Forcing it will likely break the glass (injure the baby). High-Frequency NCLEX Topics This is a classic safety and advocacy question. The NCLEX-RN loves to test when a nurse must intervene to stop a procedure or challenge a provider's plan to prevent harm. Memorize the "two pop-off" rule for vacuum delivery as a non-negotiable safety standard. Watch Out for Question Variations! • Instead of "most appropriate action," the question could ask for the "priority assessment" after a vacuum delivery (Answer: Assess the newborn for signs of scalp trauma/hemorrhage). • It could present a scenario where one pop-off occurs and ask for the next action (Answer: The provider may reapply and attempt once more, but the nurse should monitor closely). • It could combine this with maternal complications, like a 4th-degree laceration, testing your knowledge of risks associated with operative delivery.

임상 시나리오

Nursing Clinical Practice Guide Clinical Scenario: You are the labor nurse for Maria, G1P0 at 39 weeks. She has been pushing for 3 hours with poor descent. The OB/GYN applies a vacuum extractor. You hear a loud "pop" as the cup detaches. The provider re-applies it. After a second strong contraction, it pops off again. Maria is exhausted and fearful.

Nursing Intervention Strategy: 1. Immediate Advocacy: Calmly but firmly state to the provider, "Doctor, that was the second pop-off. According to protocol, we should discontinue the vacuum due to fetal safety concerns." Use SBAR if needed: "Situation: Second vacuum detachment. Background: Arrest of descent. Assessment: High risk for fetal scalp injury. Recommendation: We should prepare for a cesarean delivery." 2. Patient Support: Immediately turn your attention to Maria. Explain, "Maria, the device isn't holding as it should, so for the safety of your baby, we're going to prepare for a C-section. We'll get you ready quickly. Keep breathing with me." 3. Team Preparation: Call for assistance. Alert the OR team, anesthesia, and neonatal resuscitation team. Begin preoperative preparations per protocol. 4. Post-Delivery Vigilance: Once the baby is delivered (via C-section), your nursing focus shifts. Even though vacuum attempts were abandoned, the baby was still subjected to traction. Perform a thorough head-to-toe assessment, paying special attention to the scalp. Palpate for a soft, fluctuant mass that crosses suture lines (sign of subgaleal hemorrhage). Monitor for pallor, tachycardia, poor perfusion, and a rapidly increasing head circumference.

Patient Safety and Precautions: • Contraindication: Do not allow a third attempt. The risk-benefit ratio is unacceptable. • Key Monitoring: The first 24 hours post-delivery are critical for monitoring the newborn for signs of occult hemorrhage. Vital signs, neurologic status, and head circumference should be monitored serially. • Documentation: Precisely document the time of each pop-off, the provider's response, your advocacy statement, and the transition to cesarean delivery. Also document a detailed newborn assessment. Nursing Procedure & Medication Flow Transition to Cesarean Delivery: 1. Informed Consent: Ensure the provider obtains consent for the cesarean section, explaining the reasons (failed vacuum, fetal safety). 2. Maternal Preparation: Place a Foley catheter, administer preoperative antibiotics (e.g., cefazolin) as ordered, ensure IV access is patent, and complete the surgical checklist. 3. Neonatal Team Alert: Brief the NICU or pediatric team on the situation: "Newborn coming via C-section after two vacuum pop-offs. Please assess for potential scalp trauma/hemorrhage." 4. Postpartum Monitoring: For the mother, monitor for signs of postpartum hemorrhage, which has a slightly increased incidence after prolonged labor and operative attempts. A Word from Your Senior Nurse "In the delivery room, you are the unwavering guardian for two patients. When a piece of equipment fails twice, it's not a suggestion—it's a red-alert siren. Your voice in that moment is what stands between a routine complication and a tragic outcome. On the NCLEX, they are testing your courage to advocate, not just your knowledge of a guideline. In real life, speaking up can feel intimidating, but remember: advocating for safety is the highest form of professional nursing. When you study, don't just memorize 'discontinue after two.' Internalize the 'why'—the image of that vulnerable newborn—and you'll never hesitate to choose the right answer or take the right action."

핵심 개념

마이메르시로 국가고시 완벽 대비

기출문제와 상세 해설을 무료로. 내 약점을 분석하고 진도를 관리하며 더 똑똑하게 공부하세요.

무료로 시작하기

학습 참고용입니다. 실제 임상은 최신 지침과 소속 기관 프로토콜을 따르세요.