MECHANISMS Flashcards

1
Q

A series of processes by which the product of
conception is expelled from the maternal body

A

Labor

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2
Q

Progesterone (uterine muscle relaxant) decreases in late pregnancy

With corresponding increase in Estrogen (uterine
muscle stimulant), labor starts.

A

Low Progesterone Theory

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3
Q

Most acceptable theory

A

Uterine
Stretch Theory

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4
Q

Refers to the fetus and its ability to move through the
passageway

A

Passenger

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5
Q
  • pregnant woman’s general behavior and influences
    upon her also influence labor progress
A

Psyche

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6
Q

Descent of the fetus and uterus into pelvic cavity
before labor onset

A

Lightening

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7
Q

Lightening Occurs EARLIER WHEN

A

2-3 weeks earlier in primipara

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8
Q

Lightening in  Multigravida happens when

A

a day before labor

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9
Q

Increases Braxton Hick’s Contractions occurs when

A

3 to 4 weeks before labor.

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10
Q

first requisite for the birth of the baby.

A

Descent

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11
Q

Associated with descent.

A

Internal Rotation

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12
Q

delivery of the fetal head in vertex presentation.

A

Extension

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13
Q

restitution

A

External Rotation –

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14
Q

incision extending from the soft tissue of the
vaginal opening into the true perineum.

A

Episiotomy

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15
Q

Episiotomy Repair is called

A

episiorrhaphy

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16
Q

Episiotomy is Done when the fetal presenting part has crowned to a diameter of about

A

3 to 4 cm.

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17
Q

incision from the vaginal opening straight down
toward but not extending into the anus.

A

Median Episiotomy

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18
Q

begins at the midline above the anus but angles to
the left or right.

A

Mediolateral Episiotomy

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19
Q

Dilation stage from the onset of the first contraction to full cervical dilation.

  • Power necessary: uterine contractions
A

First Stage of Labor

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20
Q

Latent phase characteristics:

A

Cervix: 0 to 3 dilations; complete effacement.

Frequency over 10 minutes

Duration – average of 30 minutes

Maternal discomfort – backache, abdominal
cramps.

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21
Q

Nursing interventions in Latent phase

A

– proper positioning; side
lying; backrub, support system can include the
husband; nurse should stay with the client to
provide support.

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22
Q

active phase characteristics

A

Contraction is moderate

Frequency – 3 to 5 minutes

Duration – 45 to 60 seconds

 Cervix: 4 to 7 dilations; complete effacement.

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23
Q

Maternal problem: Active phase

A

Hyperventilation

Signs – pallor, dizziness, light-headedness with
tingling sensation on the fingertips and lips.

24
Q

PRIEST

A

Praise
Reassurance
Inform mother of the progress
encouragement
support system
touch

25
Transition phase characteristic:
Cervix – 8 to 10 cm dilation strong contraction Frequency – 2 to 3 minutes Duration – 60 to 90 seconds
26
Maternal behavior in Transition phase
increased perspiration, panicky, irritable; with N/V; may lose control
27
Detection of FHR – auscultation using stethoscope time
(q30 mins in early labor; q5 min in transition)
28
Monitoring – applied when membranes intact.
External or Indirect Tocodynamometer Ultrasonic Transducer
29
applied when membranes have ruptured
Internal or Direct Monitoring
30
intrauterine catheter filled with water is inserted beyond presenting part; allows measurement of frequency, duration, and intensity of contractions
 Pressure Transducer
31
applied to fetal scalp; allows measurement of FHR
Internal Spiral Electrode
32
it is when FHR is more than 170/min
Tachycardia
33
deceleration (usually begins as contraction peaks); cause by uteroplacental insufficiency
Late deceleration
34
decelerations – due to umbilical cord compression.
Variable decelerations
35
From fully dilated cervix to the delivery or expulsion of the baby. From fully dilated cervix to the delivery or expulsion of the baby.
Second Stage of Labor
36
stage where – progresses from irritability to participation, eagerness, and excitement.
Second Stage of Labor
37
s the best time for the BOW to rupture;
early 2nd stage
38
first nursing action after rupture of the BOW is to check the
FHT
39
the hallmark of the 2nd stage
Crowning
40
During the 2nd stage we Monitor FHT at intervals
midway between contractions
41
Transfer To The Delivery Room: When?  Primigravida
cervix 10 cm with bulging
42
Transfer To The Delivery Room: When? Multigravida
– cervix 8-9 cm.
43
Perineal prep is at what motion
front to back motion
44
Clamps are placed ______inches from the fetal abdomen
8-10 inches
45
Proper positioning during 2nd stage
Slight Trendelenburg Position
46
delivery of placental with the side closest to the baby emerging first
Schultze’s Mechanism
47
Assessment (REEDA):
R – Redness E – Edema E – Ecchymosis D – Discharge or drainage (bleeding) A – Approximation of wound edges.
48
Nursing Interventions: Fourth Stage of Labor
Monitor VS q15 mins until stable; Palpate fundus q15 mins
49
May initially slow labor, have dep
Narcotics
50
Produce sedation and relaxation;
Tranquilizers
51
- Produce sedation and alter memory
Amnesics
52
given in 1st stage active phase;
Paracervical Block
53
produce rapid relief of uterine and perineal pain; may be given in single doses or continuously.
Peridural Blocks –
54
may cause maternal hypotension
Epidural
55
The average duration of third stage of labor is
s 5 mins
56
The average duration of second stage of labor is
50–60 mins 20–30 mins