Fetal HR/FHTs

Question 1

What is normal basline HR
tachycardia?
bradycardia?

Answer 1

110-160 bpm
>160 for 10 min
<110 for 10 min

Question 2

What determines variability

Answer 2

SNS and PSNS interplay, large inc or dec in variability is a bad sing

Question 3

When do you see early decelerations? What causes early decels?

Answer 3

see along with contraction

due to head compression –> CN X stimulation

Question 4

what is a variable decel?

Answer 4

due to cord compression, has no relation to contractions

Question 5

What is a late decel?

Answer 5

happens after contraction, die to uteroplacental insufficiency

Question 6

What is a reactive accelration?

Answer 6

2x accels/20 mins

acel = inc 15bpm over 15s

Question 7

What does a sinusodal patter indicate?

Answer 7

fetal anemia (fetal vascualure rupture)

Question 8

Cat 1 vs 2 vs 3 characteristics

Answer 8

1: FHR 110-160, moderate variability, no late//variable decels
2: everything else
3: absent variabilty + recurrent late/variable decels, bradycardia, sinusodal pattern

Question 9

What are recuscutatuve measures in labor for bad looking baby

Answer 9

give O2 and change maternal position