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Flashcards in Introduction Part 1 maternity & mental health Deck (165)
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1

electronic fetal monitoring identifies what

non reassuring fetal heart rate tracings

2

what is the amplitude of external contraction monitoring effected by?

belt tightness, amount of adipose tissue, amount of amniotic fluid, position of mom and fetus and contraction strength

3

internal monitoring can be used only if...

after the rupture of membrane and cervical dilation

4

internal contraction monitoring accurately measures what

frequency, duration, intensity, resting tone, fetus's favorite color

5

what is the normal fetal heart rate baseline

110-160 bpm

6

the frequency of a contraction is measured on the strip from what to what

beginning of one contraction to the beginning of the next contraction

7

the resting phase of a contraction pattern is wen the fetus gets what

re-oxygenated

8

when can you start listening to the fetal heart rate

8-12 weeks

9

abnormal findings in heart rate mean what

a compromised fetal state

10

what are reasons that a fetal heart rate can not be auscultated

too early in pregnancy
fetal death
maternal obesity
polyhydramnios
fetal position
peak of contraction

11

polyhydramnios

too much amniotic fluid

12

why was fetal monitoring first done

so cerebral palsy can be detected

13

doppler

ultrasound device, detects heart rate, used for low risk labor

14

electronic fetal monitoring

ongoing assessment of fetal oxygenation, looking for changes, device is placed over the fetal back and transmits to the monitor

15

the electronic fetal monitoring measures what

rate and pattern of fetal heart tones

16

uterine monitoring

placed on maternal fundus (top portion of uterus, gets tightest during contractions), measures in mmHg

17

uterine monitoring measures what

frequency, duration, intensity and resting tone

18

where is the fetal internal monitoring placed

electrode is clipped to baby's skin (scalp)

19

does external monitoring show intensity of a contraction?

no, intensity is done by palpation

20

why is internal monitoring used

more accurately detects fetal heart rate and changes in FHR, and is not impeded by obesity, position or fluid

21

internal uterine monitoring is done because

shows pressure changes in uterus, more exact (objective) measurement of uterine activity (frequency, duration, resting tone and intensity)

22

what are the components of the internal/external monitoring paper

upper portion = fetal heart rate
lower portion = uterine activity
small block 10 seconds
large block 1 minute

23

average fetal HR observed during a 10 minute window, increases and decreases will not be counted

baseline

24

interplay between the sympathetic and parasympathetic nervous systems

baseline variability

25

absent baseline variability

amplitude is undetectable

26

minimal baseline variability

1-5 bpm (peak to trough)

27

moderate baseline variability

6-25 bpm (peak to trough)

28

marked baseline variability

more than 25 bpm (peak to trough)

29

where do we want the baseline variability to be?

moderate

30

what is the most sensitive indicator of fetal well being, and most important aspect of the strip

baseline variability