pass med Q's - Obs Flashcards
what is hyperemesis gravidarum
extreme nausea + vomiting in pregnancy triad needed for diagnosis - 5% of pre pregnancy weight loss - dehydration - electrolyte imbalance
risk factors for hyperemesis gravidarum
multiple pregnancy
trophoblastic disease
hyperthyroidism
obesity
management of hyperemesis gravidarum
antihistamines – promethazine first line or cyclizine
may need admitted for IV fluids
what is a neuro complication of hyperemesis gravidarum
wernicke’s encephalopathy
- thiamine deficiency
- triad: ophthalmoplegia/ nystagmus, ataxia, confusion
tx: pabrinex
what is protective against hyperemesis
smoking
what should be taken if women are at a high risk of pre-eclampsia
aspirin 75mg from 12 weeks to term
risk factors for pre-eclampsia
HTN in previous pregnancies
CKD
SLE, antiphospholipid
diabetes
treatment of eclampsia
IV magnesium sulphate + delivery of baby
what is given to reverse magnesium sulphate induced respiratory depression
calcium gluconate
what is the station of a baby
position of the head in relation to ischial spine
0 = at level of ischial spine
-2 = 2cm above ischial spine
+ 2 = 2cm below ischial spine
layers cut through in C section from superficial to deep
Superficial fascia Deep fascia anterior rectus sheath rectus abdominis muscle transversals fascia exztraperitoneal connective tissue peritoneum uterus
when should a mother feel fetal movements by?
24 weeks
- if no movements felt refer to maternity unit
- hand held doppler used to find heart beat
- if no heart beat – USS
- if heart beat present – CTG
When is nuchal scan offered ?
what conditions can cause increased nuchal thickness ?
11 - 13 weeks
- Downs syndrome
- congenital heart defects
- abdominal wall defects
what are the contraindications to a vaginal delivery if the woman has previously had a C section
previous uterine rupture
vertical incision
what things cause a raised AFP
multiple pregnancy
abdominal wall defects e.g. omphalocele
neural tube defects
what supplement should everyone take in early pregnancy
folic acid 400 micrograms until 12 weeks
what groups of people should take a higher dose of folic acid? what is the dose?
5mg from before conception to 12 weeks if
- previous pregnancy with neural tube defects
- diabetic
- on anti-epileptics
- obese BMI > 30
- coeliac
features of placental abruption
constant pain - tense tender uterus
shock out of keeping with visible blood loss
normal fetal lie + presentation but may be distressed – C Section
features of placenta praevia
low lying placenta - often picked up at 16 - 20 week scan
can present with painless pv bleeding
what is placenta accreta
attachment of placenta to the myometrium
increased his with previous c sections or placenta praevia
- can cause post partum haemorrhage
management of placenta accreta
delivery planned 35- 36 weeks
definitive – hysterectomy or uterus persevering surgery if they wish to have more children
what is a big risk factor for cord prolapse
artificial rupture of membranes
management of cord prolapse
presenting part of fetus can be pushed back inside
position woman on all 4 fours until emergency C section
management of premature rupture of membranes
admit
oral erythromycin for 10 days
steroids
delivery at 34-35 weeks
what score is used to assess post natal depression
Edinburgh score
presentation of vasa praevia
rupture of membranes followed by vaginal bleed + fetal bradycardia
management of a breech baby
if < 36 weeks the majority will turn themselves
if >36 weeks offer external cephalic version
signs of congenital rubella
sensorineural deafness
growth retardation
salt + pepper chorioretinitis
presentation of cholestasis in pregnancy
itch, jaundice, RUQ pain
increased ALP over ALT
treatment of cholestasis
ursodeoxycholic acid
increased risk of still birth so indice delivery 37 - 38 weeks
presentation of acute fatty liver of pregnancy
abdo pain N + V jaundice headache massively raised ALT
what is HELLP syndrome
severe form of pre - eclampsia
- Haemolysis
- Elevated liver enzymes
- low platelets
symptoms: N+V, headache, malaise
what cells secrete HCG
synctiotrophoblasts - acts to maintain production of progesterone by corpus luteum
what manoeuvre is used to treat shoulder dystocia
McRoberts manœuvre
safest antidepressants in breastfeeding women
sertraline or paroxetine
what is chorioamnionitis
bacterial infection of amniotic fluid
- pyrexia, tachycardia, smelly discharge
tx: delivery of baby + antibiotics
what is the most common cause of puerperal pyrexia (temp > 38 in first 14 days)
endometritis
- ADMIT patient
most common cause of post partum haemorrhage
uterine atony
step wise management of post partum haemorrhage
bimanual uterine compression IV oxytocin IM carboprost rectal misoprostol surgical -- balloon
first line investigation for premature ROM
speculum examination
- if unsure can do fetal fibronectin