Ch 13-14 Labor & Birth Processes Flashcards Preview

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Flashcards in Ch 13-14 Labor & Birth Processes Deck (45)
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1

Factors Influencing Labor Initiation

- Uterine stretch
- Progesterone withdrawal- pregnancy mx hormone
uterus gets crampy and then goes into labor
- Increased oxytocin sensitivity
- body’s natural hormone that is UTERUS specific and makes it contract
- nipple stimulation is #1 method to increase oxytocin
Pro: When done in moderation, it can get labor going
Con: no control on amount of oxytocin you produce. Can hyperstimulate uterus
- Increased release of prostaglandins
- softens cervix and thins it out, effaces

2

Premonitory signs of labor

cervical chgs
lightening (relief)
increased energy (nesting)
bloody show (mucus plug)
braxton hicks
spontaenous rupture of membranes (water break)

3

Regular
Stronger over time
Increasing discomfort
UC’s continue despite position
5 min apart x2 hours

true labor

4

Irregular
No increase in intensity
Localized pain (front)
UC’s come and go with position changes
Fluids helps

false labor

5

5 p's

Passenger - this is where position of baby is covered
Passageway
Powers
Position - most confusing - of the MOTHER, not of fetus
Psyche (psychological response)

6

Passenger (fetus)

size (macrosomia)
presentation
lie
attitude
position
placenta

7

what can you ask mom to do if baby is LOT?

positioning

8

If diamond is closer to anterior and triangle is posterior, it is ...

OP

9

If diamond is L and triangle is R, it is ...

LOT

10

most desirable position & presentation

cephalic, OA

11

the relation of the long axis (spine) of the fetus to the long axis (spine) of the mother

(longitudinal vs transverse)

Lie

12

which is most subjective

station

13

is true cephalopelvic disproportion common or rare?

COMMON

14

who would have problems w/ cervical dilation?

those w/ a leap
anyone w/ HPV w/ tissue removal
anyone w/ D&C or D&E (scar tissue)

15

what is a good indication that someone's pelvic msks are strong?

good shape

16

effacement

shortening

17

dilation

opening of cervix

18

Cardinal movements

EDFI
ExExEx

19

entering of the biparietal diameter (widest) into the pelvic inlet.

Engagement

20

The baby's head (presenting part) moves deep into the pelvic cavity and is commonly called lightening. – greatest at deceleration phase of 1st stage and during 2nd stage of labor

descent

21

occurs during descent, brought about by resistance felt by the baby’s head against the soft tissues of the pelvis. Smallest diameter of the baby’s head presents into the pelvis

flexion

22

head reaches pelvic floor & rotates to accommodate for changes in diameter of the pelvis. Baby must move from sideways to facing posterior

internal rotation

23

head passes through pelvis at nape of neck and there is a rest. Occurs as head, face, and chin are born

extension

24

after baby’s head comes out, it sucks back in a little & rotates to face down

external rotation

25

last big relieving push which results in baby

expulsion

26

Involuntary uterine contractions

primary powers

27

PUSHING
Bearing-down efforts
Augment the primary powers

secondary powers

28

responsible for effacement and dilation

divided into frequency
duration
intensity

primary

29

not letting the patient push so that primary powers can work baby down further into pelvis

effective for only 1 hr

longer the labor, the greater the risk of infx.

laboring down

30

epidurals before what CM increases csection rate?

3 cm