NORCET 10 Prelims-2026
Obstetrics & Gynaecology
Hard

A 41-week pregnant woman presents with labor pain. Before performing an amniotomy (artificial rupture of membranes), what should be assessed first?

Appeared in: NORCET 10 Prelims-2026

Explanation

  • The primary nursing priority before an amniotomy is to assess the fetal heart rate (FHR) to establish a baseline for comparison.
  • Amniotomy carries a significant and immediate risk of umbilical cord prolapse, where the cord can slip down ahead of the fetal presenting part once the membranes are ruptured.
  • Assessing the FHR immediately after the procedure is critical for the rapid detection of cord compression, which typically manifests as fetal bradycardia or severe variable decelerations.
  • Having a pre-procedure baseline is essential for accurately interpreting any post-procedure changes in the FHR and identifying an emergency situation.

Why Other Options Were Wrong

  • Option A: While cervical dilation is assessed to determine labor progress and whether an amniotomy is indicated, it is not the most critical safety assessment immediately prior to the procedure.
  • Option B: This is a routine maternal vital sign but does not provide direct information about fetal well-being or the specific, acute risks of amniotomy, such as cord prolapse.
  • Option D: Similar to maternal heart rate, blood pressure is monitored routinely during labor but is not the specific priority assessment related to the acute risks of amniotomy.

Related Visual

Visual explanation — Related Visual
  • Visual 1: Diagram: Illustration of umbilical cord prolapse after rupture of membranes, showing the cord compressed between the fetal head and the maternal pelvis.
  • Visual 2: Infographic: Fetal heart rate patterns, contrasting a normal baseline with fetal bradycardia and severe variable decelerations seen with cord compression.
Clinical Relevance
  • Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Priority nursing assessment before an intrapartum procedure (amniotomy) as background academic context rather than a clinical decision trigger.
  • Nurses play a critical role in ensuring fetal safety during amniotomy by diligently performing the 'before and after' FHR check.
  • Immediate recognition of FHR changes post-amniotomy is vital. The nurse must be prepared to intervene immediately for a suspected cord prolapse by repositioning the mother (e.g., knee-chest position), applying upward pressure on the presenting part to relieve compression, and notifying the provider for an emergency cesarean section.
  • What if? If the fetal presenting part is not engaged in the pelvis (e.g., station -3), the risk of cord prolapse is significantly higher. In this scenario, an amniotomy is generally contraindicated until the head is well-applied to the cervix.
How to Approach the Question
  • First, identify the clinical procedure mentioned in the question: Amniotomy, which is the artificial rupture of membranes.
  • Next, recall the most immediate and life-threatening complication associated with this procedure. The sudden gush of amniotic fluid can cause the umbilical cord to prolapse.
  • Think about how this complication would be detected. Umbilical cord compression leads to fetal hypoxia, which is most rapidly reflected as a change in the fetal heart rate (FHR).
  • Evaluate the given options in the context of this primary risk. Fetal heart rate is the only assessment that directly monitors for this acute fetal complication.
  • Cervical dilation is assessed to decide if the procedure should be done, not as an immediate safety check. Maternal heart rate and blood pressure are routine assessments but are not specific to the risk of cord prolapse.
  • Conclude that assessing the FHR to establish a baseline is the highest priority for ensuring fetal safety immediately before an amniotomy.
Concept Tested & Keywords
  • Concept Tested: Priority nursing assessment before an intrapartum procedure (amniotomy)
  • Stem keywords: 41-week pregnant, labor pain, amniotomy, artificial rupture of membranes, assessed first
  • Lead-in keywords: what should be assessed first
  • Clinical cues: The procedure is an amniotomy, which has a known, immediate risk of cord prolapse.

Question ID

Qn-DGo_gAINTW9rR_iByWM

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