Electro Fetal Monitoring Flashcards
(37 cards)
Internal fetal monitoring:
Fetal scalp electrodes FSE)
Only put in if membranes ruptures and dialated 2-3 cm
Goes into pocket if water and measures exactly how strong moms contractions are
What is the acme of the contraction
The peak
Palpate
During peak acme of contraction to determine intensity
Milked or 1+ palpate
Easily indented
Nose
Moderate 2 +
Can slightly indent
(Chin)
Strong or 3+
Cannot indent uterus
Forehead
IUPC ( inter uterine pressure catheter )
Contraction strength measured in mmhg after membrane reupture
Mild contraction IUPC
30 mmhg
Strong contraction IUPC
70 mmhg
Labor average IUPC
50-75 mmhg up to 110 mmhg with pushing
Tachysystole
Greater than 5 contractions in 10 min averaged over 30 minutes
Hypertonic uterine activity
Resting tone greater than 20 - 25 mmhg
Abnormal uterine activity
Spontaneous or stimulated labor
Easy does hypertonic uterine activity lead to
Decrease uteri placental blood flow
Hypoxemia
Hypoxia metabolic acidosis
Metabolic academia
Normal base line for FHR
110 -160 bpm
Non stress test
Baby FHR related to movement
Reactive good
Non reactive bad
Term increase FHR of in the baseline
15 bpm above the baseline lasting 15 seconds
Preterm <32 weeks
10 bpm above baseline for 10 seconds
What causes fetal response for FHR to have accelerations
Fetal movement , contractions, vag exams, breech presentations
Accelerations
Reassuring sign - indicative of a reactive , heathy fetus
Early decals
No intervention required but consider doing vag exam
Can indicate head compression
Baby telling us he is on da way
Nadir
Lowest point of contraction
Baseline variability
Variation in the base line
Is reflective of neuro maturity
Absent base line
0-1 bpm
Not good