Antenatal Care Flashcards Preview

4MB Obs and Gynae > Antenatal Care > Flashcards

Flashcards in Antenatal Care Deck (45):

Define antenatal care

Providing care and support to a pregnant woman, her partner and unborn baby, throughout pregnancy and managing any previous or intercurrent illness in a way as to facilitate safe delivery for both mum and baby


What is involved in antenatal care?

Providing support
Ensuring normalcy/detecting anomaly
Containing/managing ill health
Including mental and physical health


What are the possible signs of pregnancy

- Amenorrhea
- Nausea
- Vomiting
- Breast enlargement
- Nipple tingling
- Colostrum secretion (12weeks+)
- Urinary frequency (6weeks+)
- darkening areolae
- Montgomery tubercles
- Enlarged uterus on bimanual PV (6-8weeks)


Why do you get amenorrhea in pregnancy?

Persistence of corpus luteum maintains high progesterone - preventing uterine shedding
Uterine shedding is usually caused by decreasing progesterone levels.


What proportion of nulliparous and multiparous women respectively suffer N+V?

80% nulliparous
60% multiparous


What is often the first sign of pregnancy?

Nausea - often even before a missed period


When does nausea and vomiting usually stop by?

Usually by 16 weeks
Usually much better after 12


True/false - most women with nausea and vomiting don't need hospital admission

True - only those with hyperemesis gravidarum or those who are severely dehydrated need admission


How does a pregnancy test work?

It detects levels of HCG, produced by trophoblastic cells, the beta-subunit of which is distinct.


Ultrasound may be useful to prove pregnancy - why is it important to see a yolk sac?

Early USS can show an intrauterine gestational sac. However this may not be a true intrauterine pregnancy and could be an ectopic with a pseudo sac. Must be able to see a yolk sac to prove intrauterine pregnancy.


abdominal USS - what is the earliest stage you can you see a gestational sac?

5 weeks of amenorrhea


Abdominal USS - At what stage can you see a foetal heart beat?

6weeks of amenorrhea


Abdominal USS - At what stage can you see a foetal pole?

7 weeks of amenorrhoea


True/false - transvaginal USS will not prove pregnancy any earlier than an abdominal USS?

False - it may do so a week or two earlier (5-6 weeks)


Explain the difference between the green and red pathways

Green pathway - midwife led, low risk pregnancy, no need for medical input and no access to pain relief except for gas+air
red pathway - consultant led, medium-high risk pregnancy, all appointments will be with a medic, full range of options for pain relief and will have to be delivered in labour suite.


At what stage is the first anomaly scan done?



when is the detailed anomaly scan done?



What other tests are done at booking?

FBC, BBV, blood group + rhesus status, HbA1c


Why don't we screen for rubella in every patient now?

Vaccination rates are very high - makes it obsolete


What blood tests are done at 28 weeks?

FBC, blood group + rhesus, random glucose


When should a glucose tolerance be performed?

between 24 and 28 (usually at 26) weeks if indicated


What is the purpose of booking?

Identify suitability for green/red pathway
Identify personal/family risk of GDM or PET


What risk factors are looked at, at booking?

Family/personal history


First visit scan should be offered at booking - why?

Identify accurately the gestational age and EDD.


Women are also screened for other issues such as social and cultural issues - give examples

- Female genital mutilation
- Vulnerability
- Domestic violence
- Substance misuse
- other e.g. language barrier or religious/personal beliefs such as JWs and blood transfusions


Give some reasons (5-6 of the 16 overleaf) as to why a woman may need to move to red pathways +/or other specialist input

- renal disease
- endocrine disorder/IDDM
- Cardiovascular disease
- Psychiatric disorder needing psychotropics
- haematological disorder
- Autoimmune disorder
- epilepsy with anticonvulsants
- Severe asthma
- Recreational drugs
- obesity (>/= 30)
- Underweight (=18)
- Higher risk of complication (e.g. >40year old)
- vulnerable/social support
- malignancy
- smoker


What factors from previous pregnancy need to be considered when planning pathway?

- recurrent miscarriage
- preterm births
- severe PET/HELLP/Eclampsia
- Rhesus isoimmunisation or other antibodies
- Uterine surgery or any kind including C/S
- APH or PPH on two occasions
- Para 4+
- puerperal psychosis
- Still birth/neonatal death
- SGA (<5th centile)
- LGA (>95th centile)
- low/high birth weight
- previous infant with congenital anomaly


What supplement(s) are important before/during pregnancy?

- folic acid: before and up to 12 weeks after becoming pregnant
- Vitamin D: during pregnancy and breastfeeding


True/false - women should have their urine and BP checked regularly during pregnancy - why?

True - to look for signs of pre-eclampsia


At what stage should the whooping cough vaccine be offered?

16 weeks


Why do we offer whooping cough vaccine?

To protect baby - its not for mum.


What is the indication for anti-D antibody>

When Mum is rhesus negative and dad is rhesus positive - i.e. if any chance baby could be rhesus positive.


At what gestational age is anti-D given (if indicated)?



Why is anti-D given?

To prevent isoimmunisation to the baby's D-antigens and prevent haemolytic disease of the newborn


at roughly what level should fundal height be at 12weeks?

Pubic symphysis


at roughly what level should fundal height be at 20weeks?



at roughly what level should fundal height be at 36 weeks?

Xiphoid process


At what rate should the fundal height increase?

Approx 1cm/week
Should be +/- 2cm from the gestational age e.g. 32 weeks - fundal height should be 30-34cm


How do you measure fundal height?

Measure from the fundus to the pubis, blindly


Define foetal lie and presentation

Lie - how the baby is lying; transverse/oblique/longitudinal
Presentation - which part of the baby is the presenting part, engaged with the cervix; e.g. breech, cephalic, none etc.


Why should alcohol be avoided in pregnancy?

Can cross placenta and affect foetus same as any adult. May resulting foetal alcohol syndrome


Exercise should be avoided in pregnancy - true/false

False - exercise is recommended but excessive exercise should avoided


Travel advice should include...

Limiting travel to that which is comfortable for the pregnant lady. Planes>trains for long distance. May need fit to fly notes for some airlines at certain gestations.


Sex should be limited or avoided in all pregnancies and especially in late pregnancy - true/false

False - there is no restriction or contraindication on intercourse unless PV bleeding or placenta praevia.


Constipation in pregnancy is common - what causes this? What should you do about it?

Progesterone causing smooth muscle relaxation - eat more fresh fruits, drink plenty water, plenty of fibre and avoid laxatves unless symptomatic.