Questions and Answers
What is the primary purpose of Cardiotocography (CTG) in pregnancy?
Which of the following is NOT a component of CTG interpretation?
What is the normal range for baseline fetal heart rate in CTG?
What type of CTG uses internal sensors to directly measure the fetal heart rate?
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What do accelerations in CTG results typically indicate?
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What is the primary function of the uterine pressure sensor in CTG?
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Study Notes
What is CTG?
Cardiotocography (CTG) is a diagnostic test used to monitor the fetal heart rate and the mother's uterine contractions during pregnancy.
Purpose of CTG:
The primary purpose of CTG is to:
- Assess fetal well-being and detect any potential fetal distress
- Monitor uterine contractions and identify any abnormalities
- Guide obstetric decisions, such as inducing labor or performing a cesarean section
How CTG Works:
CTG uses two sensors:
- Uterine pressure sensor: Measures uterine contractions
- Fetal heart rate sensor: Measures the fetal heart rate using ultrasound or electrodes
The sensors transmit the data to a machine, which records the information on a paper or digital strip.
Types of CTG:
There are two types of CTG:
- External CTG: Uses external sensors placed on the mother's abdomen
- Internal CTG: Uses internal sensors, such as a fetal scalp electrode, to directly measure the fetal heart rate
Interpretation of CTG Results:
CTG results are interpreted by healthcare professionals, who look for:
- Baseline fetal heart rate: Normal range is 110-160 beats per minute
- Variability: Normal range is 5-25 beats per minute
- Accelerations: Increases in fetal heart rate, indicating fetal well-being
- Decelerations: Decreases in fetal heart rate, potentially indicating fetal distress
Abnormal CTG results may indicate fetal distress or other complications, which may require further monitoring or intervention.
What is CTG?
- Cardiotocography (CTG) monitors fetal heart rate and maternal uterine contractions during pregnancy.
Purpose of CTG:
- Assesses fetal well-being and detects potential fetal distress.
- Monitors uterine contractions and identifies abnormalities.
- Guides obstetric decisions, such as inducing labor or performing a cesarean section.
How CTG Works:
- Uses two sensors: uterine pressure sensor and fetal heart rate sensor.
- Uterine pressure sensor measures uterine contractions.
- Fetal heart rate sensor measures fetal heart rate using ultrasound or electrodes.
- Sensors transmit data to a machine, recording information on a paper or digital strip.
Types of CTG:
- External CTG uses external sensors on the mother's abdomen.
- Internal CTG uses internal sensors, such as a fetal scalp electrode, to directly measure fetal heart rate.
Interpretation of CTG Results:
- Baseline fetal heart rate: normal range is 110-160 beats per minute.
- Variability: normal range is 5-25 beats per minute.
- Accelerations: increases in fetal heart rate, indicating fetal well-being.
- Decelerations: decreases in fetal heart rate, potentially indicating fetal distress.
- Abnormal CTG results may indicate fetal distress or other complications, requiring further monitoring or intervention.
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Description
Learn about Cardiotocography (CTG), a diagnostic test used to monitor fetal heart rate and uterine contractions during pregnancy, its purpose, and how it works.
