labor monitoring Flashcards

1
Q

labor monitoring includes

A

internal examination
electronic fetal monitoring

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2
Q

what to include in internal examination

A

cervical dilation
cervical effacement
station
membrane

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3
Q

ave diameter of cervical opening
measured in cm
admits tip - 10cm (fully dilated)

A

cervical dilation

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4
Q

degree of decrease in cervical length
measured in %

A

cervical effacement

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5
Q

level of presenting part in relation to ischial spines (station 0)

A

station

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6
Q

how to measure station

A

minus (-), zero, plus (+)

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7
Q

part of internal examination which determines the
bag of water
unruptured / intact
ruptured

A

membrane

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8
Q

process of puncturing the amniotic sac

A

amniotomy

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9
Q

phases of uterine contractions

A

increment
acme
decrement

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10
Q

“building up” or increasing contraction; longest phase

A

increment

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11
Q

peak of a contraction

A

acme

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12
Q

period of “letting up” or decreasing contraction

A

decrement

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13
Q

characteristics of uterine contractions

A

duration
frequency
interval

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14
Q

from beginning of one contraction to end of the same contraction

A

duration

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15
Q

from beginning of one contraction to beginning of the next contraction

A

frequency

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16
Q

resting time between contractions to allow placental perfusion

A

interval

17
Q

used to detect uterine contractions

A

cardiotocograph (CTG)

18
Q

how to read CTG?

A

DR - define risk
C - contractions
BRa - baseline rate
V - variability
A - accelerations
D - decelerations
O - overall impression

19
Q

record number of contractions present in a minute period

A

10/20

20
Q

average heart rate of the fetus within a 10/20-minute window

A

baseline fetal heart rate

21
Q

normal FHB

A

110-160 bpm

22
Q

fetal tachycardia baseline heart rate

A

> 160 bpm

23
Q

fetal bradychardia baseline heart rate

A

<110 bpm

24
Q

beat to beat fluctuations from baseline heart rate
result of interaction between nervous system, chemoreceptors, baroreceptors and cardiac responsiveness of fetus
indicates how healthy a fetus is at a particular time

A

variability

25
Q

a variability where amplitude range is undetectable

A

absent variability

26
Q

minimal variability range

A

<5bpm

27
Q

moderate variability

A

6-25 bpm

28
Q

marked variability

A

> 25 bpm

29
Q

abrupt increase in baseline fetal heart rate of more than 15 bpm for more than 15 seconds

A

accelerations

30
Q

abrupt decrease in baseline fetal heart rate of more than 15 bpm for more than 15 seconds

A

decelerations

31
Q

early decelerations is due to

A

head compression

32
Q

3 types of decelerations

A

early deceleration
variable deceleration
late deceleration

33
Q

a deceleration due to head compression

A

early deceleration

34
Q

deceleration due to umbilical cord deceleration

A

variable deceleration

35
Q

deceleration due to uteroplacental sufficiency

A

late deceleration

36
Q

very concerning as it is associated
with high rates of fetal morbidity and mortality

A

sinusoidal pattern

37
Q

sinusoidal pattern indicates

A

severe fetal hypoxia
severe fetal anemia
fetal/maternal hemorrhage