A nurse is assessing a postpartum client who delivered vaginally 30 minutes ago. Which assessment finding would be most indicative of uterine inversion?
1Bright red vaginal bleeding with clots and hypotension
2Fundal height at the umbilicus with boggy consistency
3Severe abdominal cramping with nausea and vomiting
4Absence of palpable fundus with a visible mass at the introitus✓ 정답
해설
Uterine inversion is characterized by inability to palpate the fundus abdominally and a visible mass at the vaginal introitus. Other options describe common postpartum findings not specific to inversion.
This question presents a critical postpartum emergency. Uterine inversion occurs when the uterine fundus collapses into the endometrial cavity, turning the uterus partially or completely inside out. It is most common immediately after delivery, often linked to excessive traction on the umbilical cord or a fundal placenta. The key to answering this question lies in recognizing the distinct anatomical consequence of this event.
Analyzing the Correct Answer (Option 4)
The most definitive clinical sign of complete uterine inversion is the absence of a palpable fundus during abdominal palpation, coupled with a visible mass at the introitus. Normally, after delivery, the uterine fundus is firm and palpable at or near the umbilicus. When inversion occurs, the fundus descends through the cervix and vagina, which explains why it cannot be felt abdominally. Instead, a dark red, polyp-like mass (the inverted uterine fundus) may be visualized protruding from the vaginal opening. This finding directly reflects the pathophysiological definition of the condition as described in the literature, where the uterus is characterized by "turning inside out" [1].
Why Other Options Are Incorrect
Option 1: Bright red vaginal bleeding with clots and hypotension is a classic presentation of postpartum hemorrhage from uterine atony or retained placental fragments. While hemorrhage and shock are severe consequences of uterine inversion, this description is a general sign of blood loss and does not provide the specific anatomical clue of a displaced fundus.
Option 2: A fundal height at the umbilicus with a boggy consistency is the hallmark of uterine atony. In atony, the fundus is palpable but soft and poorly contracted, leading to hemorrhage. In contrast, inversion is characterized by the complete inability to locate the fundus abdominally.
Option 3: Severe abdominal cramping with nausea and vomiting can be associated with the intense pain of uterine inversion due to peritoneal traction and neurogenic shock. However, this is a subjective symptom profile, not the primary objective anatomical finding. The diagnosis is confirmed by the physical assessment of the fundus, not by pain characteristics alone.
Clinical Reasoning and Immediate Action
For the NCLEX-RN, recognizing the loss of the abdominal fundal contour with a vaginal mass is the critical assessment cue that differentiates uterine inversion from other postpartum complications like atony or retained placenta. This finding demands immediate action: calling for help, initiating emergency protocols, and preparing for manual replacement of the uterus by the provider. The case series highlights that management is dictated by the clinical presentation, and prompt recognition of this specific anatomical distortion is the essential first step [1].
References (research sources)
[1]
Exploring Non-puerperal Uterine Inversion: A Case Series.Case reportShasindran R, Dharshini N, Aruku N, Sasikala A. (2024) · DOI: 10.7759/cureus.53071
Clinical Recognition of Uterine Inversion
Uterine inversion is a life-threatening obstetric emergency occurring in approximately 1 in 2,000 to 1 in 23,000 deliveries. Prompt recognition based on physical assessment findings is critical to prevent hemorrhagic shock and maternal death.
Hallmark Assessment Findings
Abdominal Palpation: The uterine fundus will be absent or cannot be palpated in its expected location. A dimpling or indentation may be felt at the normal fundal site.
Visual Inspection: A dark red, polyp-like mass may protrude from the vaginal introitus. This mass represents the inverted uterine fundus. In incomplete inversion, the mass may only be visible on speculum examination.
Associated Signs: Sudden, severe lower abdominal pain, profuse hemorrhage (often leading to shock out of proportion to observed blood loss due to a neurogenic component), and signs of hypovolemic shock (tachycardia, hypotension).
Immediate Nursing Actions
Call for Help: Activate the emergency response team and notify the obstetric provider immediately. This is a true emergency.
Do Not Remove the Placenta: If the placenta is still attached, leave it in place. Manual removal before uterine replacement can dramatically increase hemorrhage.
Initiate Fluid Resuscitation: Establish large-bore IV access and begin rapid infusion of crystalloids or blood products as ordered to manage hypovolemic shock.
Prepare for Manual Reduction: The provider will attempt to immediately replace the fundus by pushing it back through the cervix using the palm of the hand, applying pressure at the last-presenting part (the fundus). Administer tocolytics if ordered to relax the uterus for replacement.
Post-Reduction Care: Once the uterus is replaced, uterotonic agents (e.g., oxytocin) are administered to promote uterine contraction and prevent re-inversion. Monitor for ongoing hemorrhage and signs of infection.
Uterine Inversion — A rare obstetric emergency where the uterine fundus collapses into the endometrial cavity, turning the uterus inside out, often due to excessive cord traction or fundal pressure.
Fundal Height — The distance from the pubic symphysis to the top of the uterine fundus, used to assess uterine involution and size; normally palpable abdominally postpartum.
Introitus — The external opening of the vagina, where a prolapsed or inverted uterine mass may become visible during a complete inversion.