O&G Flashcards
What is the combined test and when would you perform?
Nuchal translucency, beta-HCG and PAPP-A. (Mama bHCG and Papa PAPP-A)
11-14 weeks.
Tests for Downs, Edwards, Patau.
When is the serum triple test offered? What is it and what does it test for?
14-20 weeks
bHCG, AFP, oestradiol (HAO)
Downs and spina bifida
Quadruple test? What is it, when is it, what does it test for?
15-22 weeks
Triple test + Inhibin A (AFP, HCG, oestriol)
Chromosomal abnormalities and spina bifida
Down’s USS and blood findings in utero
USS: thickened nuchal translucency, short nasal bone, tricuspid regurgitation
Bloods:
Low oestriol, PAPP-A and AFP
High bHCG and Inhibin A
Klinefelters
47XXY (boys)
Normal intelligence
Small testes
Infertile
Mx of Herpes Simplex in pregnancy
CS if delivery within 6 weeks of primary attack, otherwise low risk
Daily acyclovir close to term
IV acyclovir to exposed neonates (vaginal del, SROM)
GBS in pregnancy; how do you prevent vertical transmission and when would you give it?
IV penicillin in vaginal labour if:
- Previous GBS
- Intrapartum fever
- Preterm labour
- Rupture of membranes > 18 hours
OR swab if risk factors present
HIV in pregnancy; how would you monitor the HIV?
Viral loads at least every 3 months and at 36 weeks
Protocol for pregnant women in contact with chicken pox if not immune?
Give VZV IgG is less than 10 days since contact or less than 10 days since rash appearance
If develop chicken pox , give acyclovir
Avoid delivery until at least 7 days post rash appeared
Risk factors for pre eclampsia
Nullips Previous PET FHx Maternal age Chronic HTN DM Twins Obesity
Classification of PET
Mild 140/90
Moderate 150/100
Severe 160/110
What to screen for in PET?
Headaches, drowsiness, visual disturbances, nausea and vomiting, epigastric pain
Fundoscopy, neurological examination (reflexes and eye movements)
Complications of PET?
Maternal: Eclampsia HELLP syndrome DIC Renal failure Pulmonary oedema
Fetal:
Stillbirth
IUGR
Placental abruption
Tx recommended to women at risk of PET?
Low dose aspirin before 16 weeks
Management of gestational hypertension
BP/urinalysis twice weekly, USS every 2-4 weeks
Post natal: May get worse briefly, monitor bloods and fluid balance. BP with GP
Delivery and PET?
IOL at 40 weeks for gestational HTN
Mild PET: 37 weeks
Moderate/severe: 34-36 weeks
Complications of GDM
Maternal: UTI Endometrial infection PET Instrumental delivery
Fetal: Macrosomia Polyhydramnios Preterm labour Congenital abnormalities (more in established DM) Shoulder dystocia and birth trauma Neonatal hypoG
Monitoring and management of pre-existing DM in pregnancy
Home glucose monitoring
Fortnightly visits up to 34 weeks, then weekly
Fetal echo along with normal scans, USS, umbilical artery doppler if PET or IUGR
Aspirin daily from 12 weeks
Delivery by 39
Management of GDM
Offer review in joint antenatal DM clinic in 1 week
Give glucometer, measure fasting, 1 hour and 2 hour post meal
Advise re diet and exercise, can refer to dietician.
If fasting glucose <7, offer 1 week trial exercise and diet. If unsuccessful, metformin then insulin.
If fasting glucose >7 give insulin. If deny/cannot tolerate insulin, give glibenclamide
ANC every 1-2 weeks, some extra growth scans later on in pregnancy (32, 36wks) and for fetal wellbeing (38,39wks)
Delivery in GDM
Give birth in facility with advanced neonatal resus
No later than 40 + 6 weeks, otherwise IOL or ECS
BMs every hour, maintain between 4 and 7mmol
STOP maternal insulin immediately!
BM on baby immediately and every 2-4 hours, mother to feed ASAP and at frequent intervals
Follow up with HbA1c check at 6 and 13 weeks post natal
Teratogenic cardiac drugs?
Warfarin and ACEis
Safe anti epileptic drugs in pregnancy? What else would you give?
Carbamazepine and lamotrigine (higher dose)
Folic acid 5mg/day (high) and Vit K
Tx of hyperthyroidism in pregnancy? Risks?
Propylthiouracil ; crosses placenta so keep dose low and test thyroid function
Mx of baby after delivery with mother on anti-epileptics?
Give Vit K IM
Mx of obstetric cholestasis?
weekly LFT and clotting, serial USS for fetal growth
Medication:
ursodeoxycholic acid to relieve itching
Vit K as high risk of PPH
IOL at 37 weeks; risk of stillbirth
MOA of the implantable contraceptive
Prevents ovulation, thickens cervical mucous
MOA of the POP
thickens cervical mucous
Fertility counselling points:
folic acid
aim for BMI 20-25
advise regular sexual intercourse every 2 to 3 days
smoking/drinking advice
Mx of primary PPH
ABC
IV syntocinon (oxytocin) or IV ergometrine
IM carboprost
Symptoms of endometriosis
chronic pelvic pain
dysmenorrhoea - pain often starts days before bleeding
deep dyspareunia
subfertility
Gold standard Ix and Mx for endometriosis
Laparoscopy
Mx:
NSAIDs/paracetamol for symptomatic relief
COCP or progestogens
If no improvement refer to secondary care
Levonelle
84% effective is used within 72 hours of UPSI
single dose of levonorgestrel 1.5mg (a progesterone)
EllaOne
30mg oral dose taken as soon as possible, no later than 120 hours after intercourse
Drugs to avoid whilst breastfeeding
antibiotics: ciprofloxacin (floxy floppy), tetracycline (dodgy teeth), chloramphenicol (grey baby), sulphonamides
psychiatric drugs: lithium, benzodiazepines
aspirin
thyroid: carbimazole (you would be an ‘azole’ to take it)
methotrexate (toxic to everything)
sulphonylureas (will fill your baby with urea)
cytotoxic drugs (just toxic)
amiodarone (will screw with your baby’s heart)
Management of T1DM in pregnancy
weight loss for women with BMI of > 27 kg/m^2
stop oral hypoglycaemic agents, apart from metformin, and commence insulin
folic acid 5 mg/day from pre-conception to 12 weeks gestation
detailed anomaly scan at 20 weeks
Blood glucose monitoring: fasting, pre meal, 1hr post meal, bedtime
Need for contraception after the menopause
12 months after the last period in women > 50 years
24 months after the last period in women < 50 years
Late deceleration; what is it and what does it indicate? How would you proceed?
Deceleration of the heart rate which lags the onset of a contraction and does not returns to normal until after 30 seconds following the end of the contraction
Indicates fetal distress e.g. asphyxia or placental insufficiency
Do foetal blood sampling!
Loss of baseline variability; what is it and what does it indicate?
< 5 beats / min
Prematurity, hypoxia
APH is defined as bleeding after…
24 weeks
Score to assess severity of hyperemesis
PUQE Pregnancy-Unique Quantification of Emesis
Bishops score
A score of 5 or less suggests that labour is unlikely to start without induction. Therefore in this case, vaginal PGE2 is indicated for cervical ripening and labour induction.
Simple ovarian cyst found on USS in a 24 year old woman. What do you do next?
Repeat USS in 12 weeks, if cyst persists, refer to gynae
PMB; Ix and criteria, Tx?
Ix: USS and endometrial sampling by outpatient pipelle biopsy
Pre menopausal: >7mm
Post menopausal: > 5mm
Tx for atypic: TAH and BSO for post menopausal women, progestogens and 6 monthly biopsy for pre menopausal
30% will progress to cancer
Tx without atypia: progestogens
Tx of early stage cervical cancer in post menopausal women
simple hysterectomy
cystocele surgery?
Anterior colporrhaphy (when the vaginal wall is repaired) or colposuspension