Electronic Fetal Monitoring Question and answers verified to pass
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Course
NCC ELECTRONIC
Institution
NCC ELECTRONIC
Electronic Fetal Monitoring Question and answers verified to pass Electronic Fetal Monitoring (EFM)
How many parts are there to the fetal heart tracing (FHT)?
There are 2 parts:
1. Fetal heart rate
Can be measured internally or externally:
- Externally - measured with a doppler
- In...
Electronic Fetal Monitoring (EFM)
How many parts are there to the fetal heart tracing (FHT)?
There are 2 parts:
1. Fetal heart rate
Can be measured internally or externally:
- Externally - measured with a doppler
- Internally - measured with a fetal scalp electrode (FSE)
2. Tocodynamoter (Toco)
Measures mom's contractions
Can measured internally or externally:
- External - measured with a skin tensometer belt ('toco' belt)
- External shows the frequency of contractions
- Internally - measured with Intrauterine Pressure Catheter (IUPC)
- Internal shows frequency and strength of contractions
,The Display
- Upper pane = baby (fetal heart tracing)
- Lower pane = mom (uterine activity)
- Fetal heart rate is displayed numerically and by increments of 10 bpm
(ascending order)
- Uterine pressure is displayed numerically in mmHG
- Red lines = intervals of 1 min
- Baseline of FHR is average FHR over 10 minutes, rounded to the nearest 5
bpm. (will always end in 5 or 0)
Baseline FHR
the average FHR over 10 minutes, rounded to the nearest 5 bpm
Reactive NST
2 accelerations in a 20 min span along with moderate variability
Acme
resting period
, VEAL CHOP
V- Variable C- Cord Comphression
E- Early Decels H- Head Compression
A- Accelerations O - OK
L- Late Decels P - Placenta insufficiency
Variability
Variability: Fluctuations in the FHR of 2 cycles per min. or greater
- MOST important indicator of fetal oxygen status
- Variability is caused by the interplay between sympathetic and
parasympathetic systems
- Clinically, comments on variability should be based upon the last 10-20
minutes of tracing
absent Variability
Amplitude range that is undetectable (flat line)
minimal variability
amplitude range detectable at 5 bpm or fewer
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