When should the fetal spiral electrode (FSE) be applied?
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When the US is not recording a consistent tracing. Cervix should be 1-2 cm
dilated and there should be no contraindications to the procedure per the
maternal history and labor status.
,Explain what a Tocodynamometer is, what it measures and its
limitations.
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Monitors changes in the contour of the maternal abdomen caused by
uterine contractions, is placed over the fundus. Can measure relative
changes in pressure, duration and frequency of contractions. Can NOT
measure intensity. Women with large amounts of abdominal adipose tissue
can be difficult to monitor.
What are variable decelerations?
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May be periodic or episodic, the most common pattern seen during labor.
Their shape and depth are variable, not like early or late's, rarely smooth
and regular.
A visually apparent abrupt decrease in FHR from onset of decel to nadir of
<30 seconds. The decrease is >15 BPM lasting >15 seconds and < 2 minutes
in duration.
Usually assoc. with cord compression, fetal baroreceptors increase the FHR
to maintain cardiac output.
,Which of the following fetal heart rate characteristics does the tracing
show:
Acceleration
Early decelerations
Variable decelerations
Late decelerations
Episodic decelerations
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Accelerations
Define a category I (normal) fetal heart rate tracing.
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Category I (normal) FHR tracings are normal & predictive of normal fetal
acid-base status at that time. No action is required.
Baseline FHR rate: 110-160BPM
Baseline FHR variability: moderate
Accelerations: present or absent
Late or variable decelerations: absent
Early decelerations: present or absent
What does moderate variability suggest?
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Moderate variability shows intact neurological modulation of the FHR,
normal cardiac responsiveness, and fetal reserve. This predicts the absence
of fetal metabolic acidemia at the time it is seen and indicates the fetus is
well oxygenated.
How do you palpate a contraction?
Describe the intensities.
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Using your fingertips at the fundus you can assess duration and frequency.
Intensity: nose= mild
chin=moderate
forehead=strong
By what % does maternal cardiac output increase above the non-pregnant state and
what position helps this uteroplacental blood flow?
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30-50%
lateral recumbent or semi-Fowler's
All Fetuses of mothers in labor experience an interruption of the oxygenation
pathway at which point?
Give this one a try later!
When the US is not recording a consistent tracing. Cervix should be 1-2 cm
dilated and there should be no contraindications to the procedure per the
maternal history and labor status.
,Explain what a Tocodynamometer is, what it measures and its
limitations.
Give this one a try later!
Monitors changes in the contour of the maternal abdomen caused by
uterine contractions, is placed over the fundus. Can measure relative
changes in pressure, duration and frequency of contractions. Can NOT
measure intensity. Women with large amounts of abdominal adipose tissue
can be difficult to monitor.
What are variable decelerations?
Give this one a try later!
May be periodic or episodic, the most common pattern seen during labor.
Their shape and depth are variable, not like early or late's, rarely smooth
and regular.
A visually apparent abrupt decrease in FHR from onset of decel to nadir of
<30 seconds. The decrease is >15 BPM lasting >15 seconds and < 2 minutes
in duration.
Usually assoc. with cord compression, fetal baroreceptors increase the FHR
to maintain cardiac output.
,Which of the following fetal heart rate characteristics does the tracing
show:
Acceleration
Early decelerations
Variable decelerations
Late decelerations
Episodic decelerations
Give this one a try later!
Accelerations
Define a category I (normal) fetal heart rate tracing.
Give this one a try later!
Category I (normal) FHR tracings are normal & predictive of normal fetal
acid-base status at that time. No action is required.
Baseline FHR rate: 110-160BPM
Baseline FHR variability: moderate
Accelerations: present or absent
Late or variable decelerations: absent
Early decelerations: present or absent
What does moderate variability suggest?
, Give this one a try later!
Moderate variability shows intact neurological modulation of the FHR,
normal cardiac responsiveness, and fetal reserve. This predicts the absence
of fetal metabolic acidemia at the time it is seen and indicates the fetus is
well oxygenated.
How do you palpate a contraction?
Describe the intensities.
Give this one a try later!
Using your fingertips at the fundus you can assess duration and frequency.
Intensity: nose= mild
chin=moderate
forehead=strong
By what % does maternal cardiac output increase above the non-pregnant state and
what position helps this uteroplacental blood flow?
Give this one a try later!
30-50%
lateral recumbent or semi-Fowler's
All Fetuses of mothers in labor experience an interruption of the oxygenation
pathway at which point?
