Stages of labour and APGAR score Flashcards

1
Q

When does the first stage of labour begins?

A

It begins with regular contractions or on admission to hospital with obvious signs of labour.

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2
Q

Where is the presenting part at the first stage of labour?

A

The presenting part has descended into the true pelvis.

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3
Q

When does the first stage of labour end?

A

When the cervix is fully dilated to 10 cm.

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4
Q

How many phases is the first stage of labour divided into?

A

Two phases.

Latent phase and active phase.

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5
Q

What happens in the latent phase?

A
  • Contractions are not particularly painful and at 5- to 10-minute intervals.
  • Contractions become stronger with shorter intervals, although the cervix is still dilating relatively slowly, with membranes possibly breaking later in this phase.
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6
Q

What happens in the active phase?

A
  • Starts with the cervix 3-4 cm dilated and is associated with more rapid dilatation normally at 0.5-1.0 cm/hour.
  • Once the cervix is dilated to 9 cm, towards the end of the active phase, contractions may be more painful and women may want to push.
  • During this time the fetal head descends into the maternal pelvis and the fetal neck flexes.
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7
Q

Is pushing desirable in the first stage of labour?

A

-Pushing is undesirable at this stage; there is the need to establish by vaginal examination whether the cervix is fully dilated.

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8
Q

Management of the first stage of labour

A

o Reassure and advise the patient on how her labour is progressing.
o Measure pulse hourly and temp and BP 4-hourly.
o Fetal HR should be auscultated for at least 1 minute immediately after a contraction. This should be carried out every 15 minutes.
o Offer a vaginal examination to assess cervical dilatation and fetal head descent every 4 hours and when the woman appears to be in established labour.
o Discuss the patient’s need and plan for pain relief in labour.
o Assess the position of the fetal head with regard to the mother’s pelvis.

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9
Q

What is a partogram?

A

This is a pictorial record of active labour.

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10
Q

What is the central feature of a partogram?

A

A graph used to record cervical dilatation as determined by vaginal examination.

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11
Q

When should you start the graph to record cervical dilation?

A

5 cm.

In induction of labour, this will be 4 cm.

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12
Q

What is the alert line of the partogram?

A

This shows that closer monitoring of the mother and foetus is indicated

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13
Q

What is the action line of the partogram?

A

WHO recommendation of a four-hour action line should be used. This means that, if the labour does not progress as predicted, some ACTION will be taken - eg, amniotomy, augmentation and caesarean section.

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14
Q

What are the maternal indicators plotted on a partogram?

A
  • Vital signs (heart rate, blood pressure and temperature)
  • Time of spontaneous or artificial rupture of the membranes
  • Uterine contractions (number per 10 minutes and duration)
  • Urine output
  • Drugs administered (oxytocin, antibiotics, etc.)
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15
Q

What are the foetal indicators plotted on a partogram?

A
  • Foetal heart rate
  • Amniotic fluid (colour, odour and quantity)
  • Descent of the foetal head and head moulding
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16
Q

When does the second stage of labour starts?

A

When the cervix is fully dilated.

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17
Q

When does the second stage of labour ends?

A

When the baby is born

18
Q

What happens during the second stage of labour?

A

o Contractions are stronger, occur at 2- to 5-minute intervals and last 60-90 seconds.
o The fetal head descends deeply into the pelvis and rotates anteriorly so that the back of the fetal head is behind the mother’s symphysis pubis (98% of cases).
o The fetal head becomes more visible with each contraction until a large part of the head can be seen.
o The head is now born with first the forehead, then the nose, mouth and chin.
o The head rotates to allow the shoulders to be born next, followed by the trunk and legs.
o After this, the baby should start to breathe and to cry loudly.

19
Q

Management of second stage of labour

A

o Check for level of pain relief and supplement if required.

o Ensure a midwife/doctor is present at all times to encourage pushing during contractions and relaxing in between.

o Monitor contractions and FHR - measure every 5 minutes - this should be 100-160 bpm.

o If this stage is >2 hours for a nulliparous woman or >1 hour for a multiparous woman then instrumental delivery should be considered.

20
Q

What methods are used to guard the baby’s head?

A
  • ‘Hands on’ - where pressure is placed on the baby’s head and the perineum supported. The application of a warm compress appears to reduce the severity of perineal trauma.
  • ‘Hands poised’ - where these manoeuvres are not carried out. The ‘hands poised’ method may reduce episiotomy rates but more trials are needed to decide the issue.
21
Q

When does the third stage of labour starts?

A

It starts with the birth of the baby.

22
Q

When does the third stage of labour end?

A

With the delivery of the placenta and membranes.

23
Q

When does the separation of the placenta occurs?

A

Separation of the placenta occurs immediately after birth due to forceful uterine contractions along with retraction of the uterus, thus greatly reducing the size of the placental bed.

24
Q

How long does it take for the placenta to be separated from the uterus?

A

Approximately 5 minutes

25
Q

How does the body prevent haemorrhaging during labour?

A

Haemorrhaging is prevented by the contraction of uterine muscle fibres closing off the blood vessels that were supplying the placenta.

26
Q

How does separation of the placenta present?

A

Without active management, after 10-20 minutes, separation is shown by a gush of blood, prominence of the fundus in the abdomen and apparent lengthening of the umbilical cord.

27
Q

Types of management for placental delivery?

A

Expectant

Active

28
Q

Expectant management of placental delivery

A

Once the placenta lies in the vagina, the uterus is ‘rubbed up’ to produce a contraction and the uterus is pushed towards the vagina to help with expulsion of the placenta and membranes.

These are held and twisted whilst pulling constantly so that membranes are kept intact.

The cord is not clamped until pulsation has stopped and no uterotonic drugs are used.

Should last <60 minutes.

29
Q

Active management of placental delivery

A
  • Give intramuscular (IM) synthetic oxytocin with the delivery of the anterior shoulder or as soon as the baby is born.
  • The umbilical cord is clamped between 1-5 minutes after the birth and cut soon after delivery.
  • After the cord has been cut and once there are signs of separation of the placenta, controlled traction on the umbilical cord (with simultaneous suprapubic pressure by the other hand - to prevent uterine inversion) will facilitate expulsion of the placenta and membranes.
  • In a small proportion of cases, the placenta is not removed - repeat the attempt after 10 minutes and then remove manually.
  • In all cases, the placenta and membranes are examined for completeness and any retained material removed under anaesthetic.
  • Should last <30 minutes.
30
Q

Why is active management of placental delivery better than expectant delivery?

A

Active management of the third stage has been shown to be superior to expectant management with respect to blood loss, blood transfusion, PPH and other serious complications of the third stage.

31
Q

What is the APGAR score?

A

Apgar is a quick test performed on a baby at 1 and 5 minutes after birth.
Each category is scored with 0, 1, or 2, depending on the observed condition.

32
Q

What does the 1 minute score show?

A

The 1-minute score determines how well the baby tolerated the birthing process.

33
Q

What does the 5 minute score show?

A

The 5-minute score tells the health care provider how well the baby is doing outside the mother’s womb.

34
Q

What is examined during the APGAR test?

A
Breathing effort
Heart rate
Muscle tone
Reflexes
Skin colour
35
Q

How does the APGAR score determines if the baby is doing well?

A

The Apgar score is based on a total score of 1 to 10. The higher the score, the better the baby is doing after birth.

36
Q

Why is a score of 10 unusual?

A

A score of 10 is very unusual, since almost all newborns lose 1 point for blue hands and feet, which is normal for after birth.

37
Q

What score would suggest the baby is not doing well?

A

Any score lower than 7 is a sign that the baby needs medical attention. The lower the score, the more help the baby needs to adjust outside the mother’s womb.

38
Q

What can cause a difficult birth?

A

Difficult birth
C-section
Fluid in the baby’s airway

39
Q

What does a baby with a low APGAR score need?

A

o Oxygen and clearing out the airway to help with breathing

o Physical stimulation to get the heart beating at a healthy rate

40
Q

What is not indicated by the APGAR score?

A

A lower Apgar score does not mean a child will have serious or long-term health problems.

The Apgar score is not designed to predict the future health of the child.