what are the 3 types of FHR strips
what is normal FHR
what is the usual etiology
head compression or stretching of the neck during uterine contraction
the FHR may drop how much
should you worry about early decels?
no they are benign
decribe the strip seen
mirror the uterine contraction
10-14 bpm decrease with each contraction
Start and end with comtraction
Uniform in appearance
what is the etiology?
and fetal compromise w/ decrease in HR
what strip rhythm is most likely to go for C-section 1st
describe the strip
Decels occur at or following the peak of contraction
occur w/ each contraction
start 10-30 sec after contraction start
uniform in appeaance
vary indepth with strength of ocntraction
is there beat to beat varibility
the decrease in HR is due to what?
decrease in arterial oxygen tension at chemoreceptors of SA node
are considered sever f FHR decreases how much?
> 45 bpm
are associated with what complication
What is the etiology
what does the strip look like?
Variable onset, duration, magnitude
HR > 30 bpm
Does it maintain beat to bat variabliltiy?
Are considered sever if what?
FHF decreases by 60 BPM
HR less than 60 bpm
Duration last longer than 60 sec
what is a mnemonic to remember these
V Cord compression
E Head compresion
L Placental insuficiency