RRB Nsg. Superintendent-2026 (Shift -2nd)
Obstetrics & Gynaecology
Medium

A woman in labor presents with uncoordinated, painful uterine contractions and no cervical progress. Which abnormal uterine action is most likely responsible?

Appeared in: RRB Nsg. Superintendent-2026 (Shift -2nd)

Explanation

  • Incoordinate uterine action is defined by disorganized contractions that lack the normal fundal dominance required for effective labor.
  • These contractions originate from multiple ectopic pacemakers within the uterus, causing them to be asynchronous and asymmetrical.
  • This pattern results in contractions that are intensely painful for the mother but are ineffective in producing cervical dilation or fetal descent.
  • The uterus often fails to relax completely between contractions, leading to a high resting tone (hypertonicity), which contributes to maternal exhaustion and can compromise fetal oxygenation.

Why Other Options Were Wrong

  • Option A: This is incorrect because hypotonic uterine action (uterine inertia) is characterized by weak, infrequent, and minimally painful contractions. The question describes painful contractions.
  • Option B: This is incorrect because normal labor is defined by coordinated, effective contractions that result in progressive cervical change, which is contradicted by the 'no cervical progress' in the stem.
  • Option C: While incoordinate uterine action often results in a hypertonic state (high resting tone), 'hypertonic uterine action' as a primary diagnosis usually refers to contractions that are too frequent or prolonged (tachysystole) or precipitate labor. 'Incoordinate' is the more precise term for the disorganized, non-progressive pattern described.

Related Visual

Visual explanation — Related Visual
  • Visual 1: Diagram: Comparison of uterine contraction patterns (Normal, Hypotonic, Hypertonic, Incoordinate) on a tocodynamometer tracing. This would visually demonstrate the differences in frequency, duration, intensity, and resting tone for each type.
  • Visual 2: Flowchart: Pathophysiology of incoordinate uterine action. This would illustrate the process from the loss of fundal dominance and rise of ectopic pacemakers to the resulting painful but ineffective contractions and lack of cervical progress.
Clinical Relevance
  • Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Differentiating types of abnormal uterine action during labor as background academic context rather than a clinical decision trigger.
  • Prompt identification of incoordinate uterine action is critical for preventing maternal exhaustion, dehydration, and psychological distress from a prolonged and painful labor.
  • This condition also poses a risk of fetal distress due to impaired uteroplacental blood flow from the high uterine resting tone.
  • Nursing care focuses on providing comfort, managing pain (often with sedation to help 'reset' the uterus), ensuring hydration, and closely monitoring both maternal and fetal well-being. If the pattern does not resolve, a cesarean section is often necessary.
How to Approach the Question
  • This is a clinical scenario question that requires matching a set of symptoms to the correct diagnosis.
  • First, identify the key clinical findings presented in the question stem: 1) uncoordinated contractions, 2) painful contractions, and 3) no cervical progress.
  • Next, systematically evaluate each option against these three key findings.
  • Rule out 'Normal uterine action' because there is no progress.
  • Rule out 'Hypotonic uterine action' because the contractions are described as painful, whereas hypotonic contractions are typically weak and less painful.
  • Compare 'Hypertonic' and 'Incoordinate'. While the uterus may be hypertonic, the term 'incoordinate' is the most specific and accurate diagnosis that explains why painful contractions are not causing cervical change.
Concept Tested & Keywords
  • Concept Tested: Differentiating types of abnormal uterine action during labor.
  • Stem keywords: labor, uncoordinated, painful uterine contractions, no cervical progress
  • Lead-in keywords: most likely responsible

Question ID

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