CTG Flashcards
normal metal heart rate?
110 -150
tachycardia?
> 150
bradykardia?
less than 110
what is normal baseline variability?
5-25
too little?
less than 5
too much?
more than 25
4 features of a CTG assessment
basline metal heart rate (110-150), baseline variability, presence or absence of decelerations, presence of accelerations
which decelerations are ok? not ok?
early decelerations are fine . late ones are no, associated with asphyxia
what does DR BRAVADO stand for?
determine risk, contractions, baseline rate, variability, accelerations, decelerations, overall impression
what is reassuring varaibalilty?
over 5
non reassuring?
if its less than 5 for 40-90 minutes
abnormal?
less than 5 for more than 90 minutes
what are accelerations?
an abrupt increase in baseline heart rate of >15bpm for >15 seconds
they are reassuring, however, absence of them is fine
.
decelerations?
abrupt decrease in hr of >15 for more than 15 seconds
3 kinds of decelerations?
early, variable or late
early decelerations?
start when contraction begins and stops when they stop. NOT PATHOLOGICAL
variable - usually due to
cord prolapse
late?
begin at peak and finish after contraction ends. They are serious,
what do you need to do if you see late d?
metal blood sampling and emergency c section
overall impression - reassuring, suspicious, pathological
.
metal blood sampling. if pH is less than ______, this is abnormal. what action should be taken?
deliver
borderline pH?
7.2 - 7.25, repeat in 30 minutes
