A mother on fetal monitoring shows late decelerations. What is the appropriate management?

NORCET 10 Mains

Obstetrics & Gynaecology

Easy

Appeared in: NORCET 10 Mains

Explanation

Late decelerations are a non-reassuring fetal heart rate (FHR) pattern indicating uteroplacental insufficiency, which leads to fetal hypoxia.
The initial and appropriate management involves intrauterine resuscitation measures aimed at improving fetal oxygenation.
Providing supplemental oxygen to the mother (typically 8-10 L/min via a non-rebreather mask) is a primary component of these resuscitative efforts.
This action increases the oxygen concentration in the mother's blood, thereby increasing the oxygen supply available to the fetus across the placenta.

Option A: An immediate C-section is a definitive surgical intervention, not an initial resuscitative measure. It is reserved for situations where intrauterine resuscitation fails to correct the non-reassuring FHR pattern.
Option C: Late decelerations are a sign of fetal distress and require immediate intervention. Ignoring them can lead to significant fetal morbidity or mortality.
Option D: This is a passive approach. While reassurance is part of nursing care, it is not a substitute for the active clinical interventions required to address fetal hypoxia.

Visual 1: Fetal Heart Rate Tracing - A diagram showing a typical FHR tracing with late decelerations, illustrating the onset of the deceleration after the peak of the uterine contraction and its slow return to baseline. This helps visualize the pattern being discussed.
Visual 2: Flowchart - A flowchart illustrating the steps of intrauterine resuscitation using the 'LION' mnemonic (Lie on side, IV fluids, Oxygen, Notify provider, and Stop Oxytocin). This provides a clear, step-by-step guide for management.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Management of non-reassuring fetal heart rate patterns (late decelerations) as background academic context rather than a clinical decision trigger.
Recognizing and promptly managing late decelerations are critical nursing responsibilities on a labor and delivery unit. Failure to act can result in fetal acidemia, hypoxic-ischemic encephalopathy (HIE), and other poor neonatal outcomes.
The 'LION' mnemonic is a standard, evidence-based protocol that helps nurses remember and implement the initial steps of intrauterine resuscitation quickly and effectively.
What if? If the FHR tracing showed recurrent variable decelerations instead of late decelerations, the primary suspicion would be umbilical cord compression. The initial nursing action would still involve maternal position change, but the focus would be on relieving pressure on the cord, and amnioinfusion might be considered.

How to Approach the Question

First, identify the key clinical finding in the question stem: 'late decelerations' on fetal monitoring.
Recall the pathophysiology associated with this finding. Late decelerations are caused by uteroplacental insufficiency, leading to fetal hypoxia.
Think through the standard, initial nursing interventions for a non-reassuring FHR pattern. This involves intrauterine resuscitation.
List the steps of intrauterine resuscitation (e.g., using the LION mnemonic: position change, IV fluids, oxygen, notify provider, stop oxytocin).
Evaluate the given options to see which one aligns with these initial, evidence-based interventions.
Select the option that represents a correct and primary component of intrauterine resuscitation, which is 'Provide oxygen'.

Concept Tested & Keywords

Concept Tested: Management of non-reassuring fetal heart rate patterns (late decelerations)
Stem keywords: fetal monitoring, late decelerations, management
Lead-in keywords: appropriate management
Negative lead-in flag: false

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