Physiology of 2nd Stage Labour Flashcards

1
Q

What is the definition of 2nd stage labour?

A

Traditionally defines as the time from full dilation of the cervix to the time when the baby is born

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the signs of second stage labour?

A

Show (blood stained music)
Position of mother
Appearance of presenting part
Typical variable declarations in fetal heart
Dilation
Anal cleft line/ purple line
Appearance of rhomboid of Michaelis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the factors that force the expelling of the fetus from the uterus?

A

Activity from the myometrium (primary power)

Muscles of the abdomen and diaphragm (secondary power)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What can the women usually experience during labour?

A
  • Strong, regular and repetitive contractions
  • Involuntary pushing or bearing down
  • The pain in second stage of labour is often less as cervical dilation is complete, and the women is aware that progress is rapid
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What happens if the position of the head is not oxiput anterior?

A

Then during the time between the contractions the baby will recede back and rotates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the passive phase?

A

Full dilation of the cervix in the absence of involuntary expulsive contractions during which descent an rotation occurs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the active phase?

A

The baby is visible, and or expulsive contractions with full dilation or other signs of full dilation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the Ferguson reflex?

A

A neuroendocrine reflex in which the fetal distension of the cervix stimulates a series of neuroendocrine responses, leading to oxytocin production.

When the body “expels” a baby involuntarily — that is, without forced pushing on the mothers part.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly