Fetal Heart Rate Monitoring Flashcards
1
Q
Baseline Fetal Heart Rate (FHR):
A
110 to 160 over 10 minutes rounded to nearest 5 bpm.
2
Q
Baseline Variability:
A
6 to 25 bpm due to competing sympathetic/parasympathetic response.
3
Q
Acceleration:
A
Increase in heart rate > 15 bpm for 15 secs to 2 mins. Reassuring.
4
Q
Early Deceleration:
A
Mirror of contraction. Nadir at same point. Fetal head compression causing vagal response. Normal.
5
Q
Late Deceleration:
A
Starts after the start of a contraction and peaks after the peak. Caused by uteroplacental insufficiency, non-reassuring.
6
Q
Variable Deceleration:
A
> 15 bpm in a 15 secs to 2 mins interval from umbilical cord compression. Most common type.
