• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/61

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

61 Cards in this Set

  • Front
  • Back

Role of progesterone in labour

Keeps uterus settled, prevents contractions

Role of oestrogen in labour

Makes uterus contract, prostaglandin production

Role of oxytocin in labour

Initiates and sustains contractions, promotes prostaglandin

First stage of labour

Latent phase - up to 3/4cms dilatation




Active phase - 4cms to 10cms (full dilatation)

Second stage of labour

Full dilatation to delivery of baby

Third stage of delivery

Delivery of baby to expulsion of placenta and membranes

When is second stage of labour considered prolonged in nulliparous women?

2 hours


Or 3 hours (with regional analgesia)

When is the second stage of labour considering prolonged in multiparous women?

1 hour


(2 hours if regional anesthesia)

Average duration of third stage of labour?

10 minutes

Braxton hicks contractions

Tightening of muscles thoughts to aid the body prepare for birth


Can start 6 weeks into pregnancy


Not usually felt into second or third trimester

True labour contractions

Described as a wave, abdomen hard during contraction
Start about 5 mins apart

What hormone causes real contractions?

Oxytocin

Cervix is made of

Collagen tissue (types 1, 2, 3, 4), smooth muscle and elastin

Normal fetal position

Longitudinal lie, cephalic presentation
Presenting part - vertex

Normal blood loss in labour

Less than 500mls

How long for tissues to return to pre-pregnancy state?

6 weeks

What is lochia?

Vaginal discharge after birth containing blood, muscus and endometrial castings

Hormones in puerperium

Descrease in oestrogen/progesterone


Prolactin is maintained

Stage 1 failure to progress suspected if

<2cm dilation in 4 hours

Normal fetal scalp pH

>7.25




If less than 7.2 deliver baby

When is anti D test done?

28 weeks and 34 weeks

When is booking visit done?

8-12 weeks

Gestational hypertension description

New elevated BP at >20 weeks (NO proteinuria)

HELLP syndrome

Haemolysis


Elevated Liver enzymes


Low Platelet count




Can look like preclampsia

Hypertensive drugs NOT used in pregnancy

ACEis/ARBs

Hyertensive drugs USED in pregnancy

Labetalol
Methyldopa
Nifedipine

If maternal BP <130/90 on medication

Reduce dose of HTN

If preeclampsia is present, deliver at

37 weeks

Risk factors for preeclampsia

Previous preeclampsia


First pregnancy


New partners


Aged over 40


Obesity


Multiple pregnancies (twins etc)


Little or lots of time between pregnancies

Diabetic drugs safe in pregnancy

Metformin


Insulin

How does maternal diabetes cause macrosomia?

Hyperglycaemia causes fetal hyperinsulinaemia

Polycythaemia in fetus caused by

Maternal diabetes

Management of DVT/PE in pregnancy

LMWH

Treatment for hypothyroid in pregnancy

Levothyroxine

Treatment for hyperthyroid in pregnancy

Carbimazole/PTU


Propanolol if IUGR

Epilepsy medication in pregnancy:
Pre-conception
During pregnancy

Pre conception - 5mg folic acid




During - continue folic acid. Continue current medication (except phenobarbitone), Vit K from 34 weeks onwards

Advice to epileptic mothers

Shallow baths/unlocked doors incase of fit



Bleeding in late pregnancy is considered after


What is the other name for this?

24 weeks


Antepartum Haemorrhage (APH)

Causes of antepartum haemorrhage

Placenta previa (20%)


Placental abruption (30%)


Local causes - polpys/cancer/infection


Uterine rupture




Vasa previa (rare)


40% there is no cause

Causes of placental abruption

Pre-eclampsia/hypertension
Trauma


Drug abuse/smoking


Polyhydraminos/multiple pregnancy


Abnormal placenta



Bleeding in placental abruption can be

Concealed by location

Signs of placental abruption

Sudden onset pain


Blood


Large, hard uterus


Difficulty feeling fetal parts

What is placenta previa

Placenta is partially or fully implanted in the lower segment of the uterus

Symptoms of placenta previa

Painless


Recurrent bleeding through third trimester


Soft, non-tender uterus

Diagnosis of:
Placental abruption
Placenta previa

Clinical (CTG may be abnormal)




Ultrasound (DO NOT PERFORM VAGINAL EXAM TILL PLACENTAL PREVIA IS EXCLUDED)

Major placental previa (up to cm near os) requires

C-section

Bleeding in late pregnancy history

Pain


Blood loss
Contractions
Fetal movements
Post-coital?
Smear history


Scan History

Criteria for antenatal admission

Bleeding from 23-32 weeks


Recurrent bleeding after 28 weeks


Any bleeding after 32 weeks


Major placenta previa after 36 weeks with no bleeding

When should steroids be administered for fetus

24-48h before delivery

When should steroids be administered up to

36 weeksW

What steroid is given for fetus?

Betamethasone

Major postpartum haemorrhage =

>1500ml

PPH treatment

Uterine massage + 5 units syntocinon stat


Then 40 units syntocinon in hartmaans solutionS

Surgical treatments for PPH

Undersuturing


Brace sutures


Arterial ligation

What is placenta accreta and placenta percreta?




Risk factors

Accreta - Placenta invades myometrium


Perceta - Placenta invades serosa




Placenta previa and previous cesarean section

Trend of blood pressure in pregnancy

Vasodilitation and fall in BP up to 22 weeks
Levels off at 22-24 weeks
Steady rise until term

Diagnostic criteria for hypertension in pregnancy

>140/90 on 2 occasions


DBP >100

30/15 greater compared to booking BP

Hypertension before 20 weeks gestation

Probably pre-existing

Drugs used for eclampsia

Magnesium sulphate (anti-convulsant)


IV labetolol or hydralazine

Methyl dopa is contraindicated in
Labetolol is contraindicated in

Depression


Asthma

Breastfeeding on pregnancy hypertensives

Is okay