Contractions During 1st Stage of Labour

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Questions and Answers

What is the stage of labour that starts from the delivery of the placenta and ends 2 hours after?

4th stage (correct)

3rd stage

1st stage

2nd stage

What is the cervical dilatation in the latent phase of the 1st stage of labour?

3-4cm

Between 3-4cm

Less than 3-4cm (correct)

4-10cm

How long does the active phase of the 1st stage of labour last in multiparous women?

2-6 hours (correct)

6-8 hours

8-12 hours

3-8 hours

What is the stage of labour that starts from the full cervical dilatation till the expulsion of the fetus from the birth canal?

2nd stage Signup and view all the answers

What is the term for the rupture of membranes?

Water breaking Signup and view all the answers

What is the duration of the latent phase of the 1st stage of labour in nulliparous women?

3-8 hours in multiparous women, longer in nulliparous women Signup and view all the answers

What is the role of the 'show' in pregnancy?

To protect the fetus from infections Signup and view all the answers

What is the hormone responsible for helping the mother push and give birth to the baby?

Adrenaline Signup and view all the answers

What is the characteristic of uterine contractions during the onset of labor?

Increasing in intensity and duration Signup and view all the answers

What is the mechanism that repeats the feedback cycle with greater speed and intensity until the cervix is fully dilated?

Ferguson Reflex Signup and view all the answers

What is the purpose of the 'show' during the onset of labor?

To detach and come out as a sign of labor Signup and view all the answers

What is the outcome of the Ferguson Reflex mechanism?

Cervix dilation accelerates Signup and view all the answers

What is the main difference between Braxton-Hicks contractions and true contractions during the 1st stage of labour?

True contractions are rhythmic and progressively stronger, while Braxton-Hicks contractions are irregular and painless Signup and view all the answers

When does rupture of the amniotic sac typically occur?

Towards the end of pregnancy with sudden movements of the fetus or with the onset of contractions Signup and view all the answers

What is Preterm Premature Rupture of Membranes (PPROM) characterized by?

Rupture of the amniotic sac before 37 weeks of gestation Signup and view all the answers

What should be noted when the membranes rupture during labour?

The time of rupture, colour, amount, and odour of amniotic fluid Signup and view all the answers

What is the primary purpose of monitoring contractions during the 1st stage of labour?

To monitor frequency, intensity, and duration of contractions Signup and view all the answers

What is a characteristic of true contractions during the 1st stage of labour?

They are rhythmic and progressively stronger Signup and view all the answers

What is the typical volume of amniotic fluid when the membranes rupture towards the end of pregnancy?

1 liter Signup and view all the answers

Why is it essential to monitor the colour of the amniotic fluid when the membranes rupture?

To assess the risk of infection Signup and view all the answers

Study Notes

Contractions during Labour

Braxton-Hicks contractions are false contractions that prepare the uterus for childbirth, occurring at the end of the 2nd to 3rd trimester of pregnancy.
They are painless, not regular, and increase towards the end of the day due to fatigue, but go away with rest.
True contractions during labour are regular and rhythmic, occurring every 10 minutes with similar intensity and duration, and progressively become stronger and more frequent.
True contractions bring about the full dilation of the cervix and are monitored for their frequency, intensity, and duration.

Rupture of Membranes

Rupture of the amniotic sac before 37 weeks is considered Preterm Premature Rupture of Membranes (PPRM).
Rupture of membranes can occur towards the end of pregnancy with sudden movements of the fetus or with the onset of contractions.
When the membranes are intact and break during labour, it's important to note the time of rupture, colour, amount, and odour of amniotic fluid.

Stages of Labour

The 1st stage of labour starts from the onset of labour till full cervical dilatation.
The 2nd stage of labour starts from full dilatation till the expulsion of the fetus from the birth canal.
The 3rd stage of labour starts after the expulsion of the fetus till the expulsion of the placenta and membranes.
The 4th stage of labour starts from the delivery of the placenta and ends 2 hours after.

1st Stage of Labour: Cervical Stage

The latent phase of the 1st stage of labour lasts 3-8 hours, and is shorter in multiparous women.
The active phase of the 1st stage of labour lasts 2-6 hours, and is shorter in multiparous women.
During this stage, the mother is calmed and relieved of pain.

Onset of Labour

The Ferguson Reflex causes a feedback cycle that repeats with greater speed and intensity until the cervix is fully dilated.
Adrenaline (the hormone of "fight" or "flight") helps the mother to push and give birth to the baby.

Signs of Onset of Labour

Regular uterine contractions increasing in intensity and duration.
The appearance of "show" - a sticky, jelly-like pink mucus that closes the cervix during pregnancy and works as a barrier to protect the fetus from infections.

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Description

Learn about Braxton-Hicks contractions, false contractions that prepare the uterus for childbirth, occurring during the 2nd to 3rd trimester of pregnancy.