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Electronic Fetal Monitoring Question and answers verified to pass

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  • 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...

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  • August 7, 2024
  • 16
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • NCC ELECTRONIC
  • NCC ELECTRONIC
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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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