During a delivery, after the emergence of the fetal head, the nurse notes that it retracts back against the perineum (turtle sign), indicating shoulder dystocia. What is the initial, first-line maneuver recommended to resolve this obstetric emergency?

Appeared in: NORCET 9 Prelims-2025

Explanation

The McRoberts maneuver is the universally recommended first-line intervention for shoulder dystocia because it is simple, non-invasive, and often effective.
It works by causing a cephalad rotation of the symphysis pubis and flattening of the sacral promontory, which alters the pelvic angle to release the impacted anterior shoulder.
This maneuver does not increase the pelvic dimensions but changes the orientation of the pelvis relative to the fetal shoulders.
It is the 'L' in the HELPERR mnemonic, a standardized protocol for managing this emergency.

Option A: The Woods' screw maneuver is a secondary intervention, not the initial one. It is an internal rotational maneuver performed by the provider after less invasive methods like the McRoberts maneuver have failed.
Option B: The Zavanelli maneuver is a last-resort procedure for a catastrophic, unresolved shoulder dystocia. It involves pushing the fetal head back into the uterus for an emergency cesarean delivery and is associated with high risks.
Option D: Application of fundal pressure is strictly contraindicated during shoulder dystocia. It can further impact the anterior shoulder against the symphysis pubis, increasing the risk of brachial plexus injury, clavicular fracture, and uterine rupture.

Visual 1: Diagram - A diagram illustrating the change in pelvic angle and the release of the anterior shoulder during the McRoberts maneuver.
Visual 2: Illustration - An image depicting the 'turtle sign,' showing the fetal head retracting against the maternal perineum after delivery.
Visual 3: Flowchart - A flowchart of the HELPERR mnemonic, showing the sequence of interventions for shoulder dystocia.

Clinical Relevance

Nursing practice connection: Prioritize focused assessment, early escalation, and real-time monitoring when managing Management of Shoulder Dystocia in acute care settings.
Shoulder dystocia is an unpredictable obstetric emergency requiring a rapid, coordinated team response. Nurses play a key role in recognizing the signs, calling for help, and assisting with maneuvers.
The HELPERR mnemonic provides a standardized, systematic approach to improve outcomes and reduce panic in a high-stress situation.
Accurate documentation is critical, including the time of head delivery, the time dystocia was recognized, each maneuver performed, and the time of delivery of the body.

How to Approach the Question

First, identify the clinical situation described in the question stem. The mention of the fetal head retracting against the perineum ('turtle sign') is the classic sign of shoulder dystocia.
Next, understand what the question is asking. It specifically asks for the 'initial, first-line' maneuver.
Recall the standard management protocol for shoulder dystocia, often remembered by the HELPERR mnemonic.
The 'L' in HELPERR stands for 'Legs,' which corresponds to the McRoberts maneuver. This is the first and least invasive physical maneuver performed.
Evaluate the given options based on this protocol. Woods' screw and Zavanelli are later interventions, and fundal pressure is contraindicated.
Select the option that matches the initial, first-line step in the management algorithm.

Concept Tested & Keywords

Concept Tested: Management of Shoulder Dystocia
Stem keywords: shoulder dystocia, turtle sign, fetal head, perineum, obstetric emergency
Lead-in keywords: initial, first-line maneuver
Clinical cues: The 'turtle sign' is a classic visual cue for shoulder dystocia, requiring immediate intervention.

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