4.) Fetal Heart Auscultations Flashcards
What is the traditional way to listen to the fetal heart rate?
Pinard stethoscope it is a simple coned shape instrument
At which week can the FHR be heard using the traditional instrument?
18-20 weeks gestation ( pinards stethoscope )
Which is the more advanced technique to auscultate FHR?
Doppler ultrasound device is more modern and provides a more accurate and early detection of the fetal heart rate around 10 to 12 weeks gestation
What is the normal FHR range?
120-160 bpm
What are the benefits of detecting FHR?
- Baseline heart rate
- Rhythm
- Changes , acceleration/decelerations , may indicate fetal distress.
- Differentiate between maternal and fetal heartbeats.
What are the limitations of FHR monitoring?
- Non continuous
- No recording capability
- No variability, does not capture short term variations in HR
- Obesity and polyhydramnios makes it difficult.
When should we check FHR during the following phases of labour and how often?
Active phase
Second stage
Active phase : Check FHR every 15-30 mins
Second stage : Every 5 mins check