Obstetric Monitoring
Fetal Heart Tones
Cardiotocography
Physiology
Anesthesia
100
Most common form of OB monitoring
External electronic monitoring
100
Average fetal heart rate range
110 - 160 beats per minute
100
What category is this tracing?
Category I
100
APGAR score is a quick test performed on newborns at ___ & ___ min after birth.
1 min, 5 min
100
Most common complication after neuraxial anesthesia
Maternal hypotension
200
Name of equipment used for internal electronic monitoring
Fetal scalp electrode
200
Average FHR variability range
5 - 25 beats per minute
200
What category is this tracing?
Category III
200
When fetal blood pressure increases, baroreceptors detect this change and signal the brain to reduce the heart rate via this nerve
vagus nerve (CN X)
200
First-line vasopressor commonly given for maternal hypotension after neuraxial anesthesia
Phenylephrine
300
First maternal repositioning strategy to improve uteroplacental blood flow if there are signs of fetal distress during labor
Left lateral position
300
Acronym for FHR changes during labor
VEAL CHOP
300
Name the two quantitative variables seen on a typical electronic fetal monitor
1. Fetal heart rate
2. Maternal uterine pressure
300
Fetal pH level that suggests fetal distress with need for expedited delivery
pH < 7.20
300
Two IV anti-emetic agents commonly administered prophylactically with spinal anesthetic for C/S
ondansetron, dexamethasone
400
Fetal bradycardia is < ____ bpm for at least 10 min or < ____ bpm for at least 5 min.
110; 100
400
Late decelerations
Placental insufficiency
400
Name the FHR tracing pattern and category
Sinusoidal pattern, Category III
400
The subset of mothers who are at the highest risk for uterine rupture during labor
Mothers with previous C/S (and thus, previous uterine scar)
400
Compression of which vessel by the gravid uterus makes a mother more prone to the hypotensive effects after epidural or spinal anesthesia
IVC
500
Name the two components of the external fetal monitoring system
1. Tocodynamometer
2. Doppler U/S transducer
500
Early decelerations
Head compression
500
Based off this EFM strip, what do you think is happening?
Umbilical cord compression
500
Newborn patient has heart rate 101, cyanotic body and extremities, no response to stimulation, no flexion of extremities, and strong cry. What is the patient’s APGAR score?
4
500
Preventative strategy to avoid maternal hypotension prior to performing a labor epidural
500-1000 mL IVF bolus