What is a normal CTG trace?
Normal antenatal CTG trace: The normal antenatal CTG is associated with a low probability of fetal compromise and has the following features: Baseline fetal heart rate (FHR) is between 110-160 bpm • Variability of FHR is between 5-25 bpm • Decelerations are absent or early • Accelerations x2 within 20 minutes.
What is the normal fetal heart rate at 14 weeks?
Baby’s Heart-rate or known as Fetal Heart Rate (FHR) Here is the average FHR from 14 weeks on: ~150 bpm by 14 weeks. ~140 bpm by 20 weeks. ~130 bpm by term.
What are 3 possible explanations for fetal tachycardia?
The fetal tachycardia causes include maternal fever, dehydration or anxiety, maternal ketosis, medications like anticholinergic medications, sympathomimetic medications like terbutaline, fetal movement, preterm fetus, maternal thyrotoxicosis and maternal anaemia1.
What is considered low fetal heart rate?
A normal fetal heart rate is between 110 and 160 beats per minute (bpm). Fetal bradyarrhythmia is generally defined as a sustained heart rate less than 110 beats per minute.
How do I read a CTG result?
The most popular structure can be remembered using the acronym DR C BRAVADO:
- DR: Define risk.
- C: Contractions.
- BRa: Baseline rate.
- V: Variability.
- A: Accelerations.
- D: Decelerations.
- O: Overall impression.
What is abnormal CTG?
An abnormal CTG has two or more features which are non-reassuring, or any abnormal features. Further information about classifying FHR traces: If repeated accelerations are present with reduced variability, the FHR trace should be regarded as reassuring.
What is a deceleration on a CTG?
Decelerations are an abrupt decrease in the baseline fetal heart rate of greater than 15 bpm for greater than 15 seconds.
What happens if a fetus has tachycardia?
If the heart beats too fast, contractions are shallow and not enough blood is pumped with each heartbeat. As a result, the fetus can go into heart failure. The most common form of this condition is called supraventricular tachycardia (SVT), in which the heart rate can be faster than 200 beats per minute.
When is fetal tachycardia most common?
Supraventricular tachycardia (SVT), the most common fetal tachyarrhythmia, accounts for 70-80% of fetal tachycardia. It is often diagnosed around 28-32 weeks gestational age but may be seen earlier.
What is the heartbeat for a girl?
The study found that the average heartbeat for boys in the first trimester was 154.9bpm, and the girl heartbeat was 151.7bpm. These results, unfortunately, disprove the wives tale.