CTG Graph Interpretation in Pregnancy
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Questions and Answers

What is the primary purpose of interpreting a CTG graph?

  • To detect potential complications during pregnancy and labor (correct)
  • To assess maternal uterine activity during pregnancy
  • To determine the exact date of conception
  • To monitor fetal development during the first trimester
  • What is the normal range for baseline FHR in a reactive CTG pattern?

  • 100-130 bpm
  • 110-160 bpm (correct)
  • 150-200 bpm
  • 120-180 bpm
  • What is a characteristic of uterine activity in a normal CTG pattern?

  • Complete absence of contractions
  • Infrequent, low-intensity contractions
  • Irregular, high-intensity contractions
  • Regular, moderate-intensity contractions (correct)
  • What is a feature of a non-reactive FHR pattern?

    <p>Reduced variability in FHR</p> Signup and view all the answers

    What does the FHR tracing component of a CTG graph record?

    <p>Fetal heart rate and variability</p> Signup and view all the answers

    Study Notes

    CTG Graph Interpretation

    Overview

    • CTG (Cardiotocography) graph is a recording of fetal heart rate (FHR) and maternal uterine activity (UA) over time
    • Interpreted to assess fetal well-being and detect potential complications during pregnancy and labor

    Components of a CTG Graph

    • Fetal Heart Rate (FHR) Tracing:
      • Baseline FHR (average rate over 10 minutes)
      • Variability (fluctuations in FHR)
      • Accelerations (short-term increases in FHR)
      • Decelerations (short-term decreases in FHR)
    • Uterine Activity (UA) Tracing:
      • Contractions (frequency, duration, intensity)

    Normal CTG Patterns

    • Reactive FHR Pattern:
      • Baseline FHR: 110-160 bpm
      • Variability: 5-25 bpm
      • Accelerations: present
      • Decelerations: absent or minimal
    • Uterine Activity:
      • Contractions: regular, moderate intensity

    Abnormal CTG Patterns

    • Non-Reactive FHR Pattern:
      • Baseline FHR: abnormal (e.g., tachycardia, bradycardia)
      • Variability: reduced (<5 bpm) or absent
      • Accelerations: absent
      • Decelerations: present or persistent
    • Uterine Activity:
      • Contractions: hyperactive, prolonged, or resting tone

    CTG Interpretation Categories

    • Normal:
      • Reactive FHR pattern and normal UA
    • Suspicious:
      • Non-reactive FHR pattern or abnormal UA
    • Pathological:
      • Severe FHR abnormalities (e.g., prolonged decelerations, bradycardia) or abnormal UA (e.g., hyperstimulation)

    Clinical Implications

    • Normal CTG: reassuring of fetal well-being
    • Abnormal CTG: may indicate fetal distress, hypoxia, or acidosis; requires further evaluation and potential intervention

    CTG Graph Interpretation

    Overview

    • CTG graph records fetal heart rate (FHR) and maternal uterine activity (UA) over time to assess fetal well-being and detect potential complications during pregnancy and labor.

    Components of a CTG Graph

    Fetal Heart Rate (FHR) Tracing

    • Baseline FHR: average rate over 10 minutes.
    • Variability: fluctuations in FHR.
    • Accelerations: short-term increases in FHR.
    • Decelerations: short-term decreases in FHR.

    Uterine Activity (UA) Tracing

    • Contractions: frequency, duration, and intensity.

    Normal CTG Patterns

    Reactive FHR Pattern

    • Baseline FHR: 110-160 bpm.
    • Variability: 5-25 bpm.
    • Accelerations: present.
    • Decelerations: absent or minimal.

    Uterine Activity

    • Contractions: regular, moderate intensity.

    Abnormal CTG Patterns

    Non-Reactive FHR Pattern

    • Baseline FHR: abnormal (e.g., tachycardia, bradycardia).
    • Variability: reduced.
    • Accelerations: absent or minimal.
    • Decelerations: prolonged or repetitive.

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    Description

    Assess fetal well-being and detect potential complications during pregnancy and labor by interpreting CTG graph recordings of fetal heart rate and maternal uterine activity.

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