A laboring client at 38 weeks gestation suddenly experiences… | 마이메르시 MyMerci
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Maternal Newborn Health
문제

A laboring client at 38 weeks gestation suddenly experiences severe variable decelerations on the fetal heart rate monitor. Upon vaginal examination, the nurse palpates the umbilical cord protruding from the cervix. What is the nurse's immediate priority action?

해설
Positioning in knee-chest or Trendelenburg and applying upward pressure relieves cord compression, the priority in umbilical cord prolapse. Other actions (clamping, covering cord, vaginal delivery) are incorrect or secondary.
같은 주제 다음 문제A nurse is caring for a laboring client when the membranes rupture spontaneously. Which as…

심화 해설

Understanding the Emergency: Umbilical Cord Prolapse

When you encounter a prolapsed umbilical cord, you are facing an obstetric emergency where the cord slips past the presenting fetal part into the vagina. The immediate life-threatening mechanism is compression of the cord between the presenting part and the maternal pelvis, which occludes blood flow and oxygen delivery to the fetus. The case report highlights that this condition "threatens fetal oxygenation" and can occur in approximately 1 to 6 per 1000 pregnancies [1]. Your goal is to physically lift the presenting part off the cord to restore fetal circulation while arranging for rapid delivery.

Why Position and Pressure Are the Priority

The correct immediate action is to position the client in a knee-chest or Trendelenburg position and apply upward pressure to the presenting part. This intervention directly addresses the pathophysiology of cord compression. By elevating the maternal hips (Trendelenburg) or having the client assume a knee-chest position, gravity assists in moving the fetus away from the pelvis. The manual upward pressure on the presenting part, maintained by the nurse's gloved hand in the vagina, creates a physical space between the fetal skull or breech and the cord, relieving the occlusion [1]. This is the only action that can immediately restore fetal oxygenation at the bedside while preparations for a definitive delivery, typically an emergency cesarean, are made.

Analyzing the Other Options

Clamping the cord immediately is contraindicated because it permanently cuts off the fetus's only source of oxygen, leading to rapid hypoxia and death if delivery is not instantaneous. The cord must remain intact to sustain the fetus until surgical delivery. Covering the cord with sterile saline-soaked gauze is an important step to prevent drying and vasospasm, but it is secondary to relieving the pressure that is actively causing fetal asphyxia. Monitoring the fetal heart rate is a passive action that delays the critical, life-saving intervention. Preparing for immediate vaginal delivery is not the priority action for the nurse at the bedside; the priority is the hands-on maneuver to relieve compression, which must be sustained continuously until a cesarean section can be performed, as vaginal delivery is often not immediately feasible or safe in this scenario [1].
References (research sources)
  • [1]
    A rare case report of umbilical cord prolapse in a second-trimester twin pregnancy: Diagnostic, management, and prognostic challenges.Case reportFathallah I, Al-Talep A, Alajrd AA, Al-Ali M. (2025) · DOI: 10.1016/j.ijscr.2025.111578

임상 시나리오

Clinical Practice Guide: Umbilical Cord Prolapse

Umbilical cord prolapse is a life-threatening obstetric emergency requiring immediate action to prevent fetal asphyxia. The cord becomes compressed between the presenting part and the maternal pelvis, cutting off fetal circulation.

Immediate Nursing Actions
  • Call for emergency assistance and activate the rapid response or code team.
  • Position the client to relieve cord compression: knee-chest position or steep Trendelenburg.
  • Insert a sterile gloved hand into the vagina and apply upward pressure on the presenting part to lift it off the cord.
  • Maintain this manual pressure continuously until delivery is achieved in the operating room.
Adjunctive Measures
  • Administer oxygen via non-rebreather mask at 10-15 L/min to improve fetal oxygenation.
  • If the cord is visible outside the vagina, gently wrap it in sterile saline-soaked gauze to prevent drying and vasospasm; avoid excessive handling.
  • Initiate or increase IV fluids to improve maternal blood volume and placental perfusion.
  • Prepare for immediate cesarean delivery; vaginal delivery may be considered only if the cervix is fully dilated and delivery is imminent.
Key Safety Points
  • Never attempt to push the cord back into the uterus; this increases trauma and compression.
  • Do not clamp or cut the cord before delivery; this eliminates all fetal oxygen reserve.
  • Continuous fetal heart rate monitoring is essential to assess the effectiveness of interventions and fetal status.
  • Document the time of prolapse discovery, interventions performed, and fetal response.

핵심 개념

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