Obstetrics Flashcards
What is tested for weeks 0-10?
Hb, blood group, Rh, SCA, thalassaemia, syphilis, hep B, HIV, rubella
What is a flaw of the nuchal translucency scan at 11-13 weeks?
Inaccurate in morbidly obese patients
What’s the risk of miscarriage with a CVS and amniocentesis?
1% and 0.5%-1%
What term is giving to itchy papule and plaques that develop on abdominal striae in the 3rd trimester?
Polymorphic eruption of pregnancy
What colour are the excoriated papule in prurigo?
Red/brown
What autoantibody causes blisters in the 2nd trimester?
IgG autoantibodies, in pemphigoid gestations
Itching on the hands and feet is a sign of
Pregnancy cholestasis
What epileptic drugs increase the risk of foetal abnormalities/cognitive impairments?
Sodium valproate, phenytoin, primidone, carbamazepine
What are the complications associated with measles?
Miscarriage and stillbirth
What are the complications associated with parvovirus B19?
Hydrops foetalis and miscarriage
What can congenital rubella syndrome cause?
Deafness
What is smoking commonly associated with?
SIDS
When are AntiD IgG injections administered in Rhesus incompatibility?
At 28 weeks and 72 hours after birth
What are complications of pre-eclampsia?
HELLP syndrome, eclampsia, stroke, organ failure, foetal death
RF for gestational diabetes
BMI > 30, older maternal age, PCOS, smoking, T2DM
What should be avoided after birth in patients with pregnancy cholestasis?
Oestrogen contraceptive pills
What is a cause of partial HMs?
Dispermic fertilisation
What are complete HM associated with?
Choriocarcinoma
What are 2 signs of a threatened miscarriage?
Bleeding and closed cervix
What are 2 signs of an inevitable miscarriage?
Bleeding and opened cervix
What is the main sign of an incomplete miscarriage?
Ongoing bleeding
What is the final sign of a complete miscarriage?
Bleeding ceased and empty uterus
Vacuum aspiration abortions are performed until
9 weeks gestation
What gestation is dilation and evacuation performed at?
14-15 weeks
What is the progesterone antagonist used in abortions?
Mifepristone
What is the prostaglandin analogue used in abortions?
Misoprostol
What is a RF for ectopic pregnancy?
PID/undiagnosed STI
When is a salpingectomy performed?
Foetal pole > 35 mm
What are RF for placenta praevia?
Uterine scarring (short inter-pregnancy interval, caesarean), advanced maternal age, smoking/drugs
A pH of what in a foetal scalp sample requires delivery?
< 7.20
Variable decelerations is a sign of what
Reduced amniotic fluid and umbilical cord compression
Sinusoidal rhythms suggest
Hypoxia, anaemia, haemorrhage, foetal mortality
What does APGAR stand for?
Activity (muscle tone) Pulse Grimace (reflex irritability) Appearance Respiration Excellent 7-10, moderately depressed 4-6, severely depressed 0-3
What are the causes of postpartum haemorrhage?
Uterine atony, trauma, retained tissue, coagulopathies
RF for dystocia
Small pelvis, young mother, FGM, large babies
Puerperal sepsis can take place from rupture of membranes to when?
42 days postpartum
Common causes of puerperal sepsis?
GAS, Strep. pyogenes, E. coli
The blood spot tests for what diseases?
SCA, CF, congenital hypothyroidism, PKU, MCADD, MSUD, IVA, GA1, HCU
Newborn physical examination will investigate
Eyes, heart, hips, testicles
What age is the hearing loss test?
4-5 weeks
What are the chances of natural conception within 1, 2 and 3 years?
84%, 92%, 93%
What OTC drug is dangerous during pregnancy?
Ibuprofen
Toxoplasmosis is transmitted in what
Cat faeces
4 criteria to admit a pregnant woman with morning sickness
- Unable to tolerate liquids
- Ketonuria
- 5% weight loss
- Comorbidity/infection - i.e. UTI
Which 2 types of patients must take extra folic acid during pregnancy?
HIV+ patients (co-trimoxazole) and epileptic patients
What must babies born to epileptic mothers receive at birth?
Vitamin K injection to reduce risk of neonatal haemorrhage (from exposure to epileptic drugs)
2 main signs of postpartum psychosis
- Extreme mood swings - mania and depression
2. Delusion
3 effects of foetal alcohol syndrome
- Poor growth
- Distinct facial features (thin upper lip, small eye openings)
- Behavioural/learning difficulties
3 effects of smoking during pregnancy
- Low birth weight/restricted growth
- Pregnancy complications
- Future lung conditions
Opioid use in pregnancy causes
Neonatal abstinence syndrome - Withdrawal: Irritable, vomiting, diarrhoea, poor weight gain, convulsions