Obs & Gynae Flashcards
What are the indications for surgical management of ectopic pregnancies?
> 35 mm b
Beta-hCG levels > 5000 IU/L
Foetal heartbeat
-> Salpingectomy is first-line for women with no risk factors for infertility
-> If do then Saplingotomy
What are the indications for expectant management vs medical management of an ectopic pregnancy?
hCG <1,500IU/L = medical management (methotrexate)
hCG <1,000IU/L = watch 7 wait for 48hrs
What are the emergency contraception options?
IUD, oral progesterone-only contraceptive (levonorgestrel) or a selective progesterone receptor modulator (ulipristal acetate)
Which contraception should be prescribed post-partum?
Progesterone only pill
What are the indications for a salpingotomy as the treatment for an ectopic pregnancy?
PMH affecting their fertility or tubes
What is the most common cause of mastitis and breast abscesses?
Staph aureus (common when breast feeding)
At what size should breast fibroadenomas be surgically removed?
> 3cm
How should breast cysts be managed?
Cysts should be aspirated, those which are blood stained or persistently refill should be biopsied or excised
What are the indications for antibiotic use in mastitis?
Symptoms not improving after 12-24 hours despite effective milk removal and/or breast milk culture positive
How should mastitis be treated?
Flucloxacillin for 10-14 days.
Breastfeeding or expressing should continue during treatment.
What is Paget’s disease of the nipple?
Eczematoid change of the nipple associated with an underlying breast malignancy.
What are the indications for a mastectomy over a wide local excision?
Multifocal tumour, Central tumour, Large lesion in small breast, DCIS >4cm
What are the management options for stress incontinence?
Pelvic floor muscle training (1st line)
Surgical (retropubic mid-urethral tape procedures) or duloxetine
What are the management options for urge incontinence?
Bladder retraining (1st line)
Oxybutynin (antimuscarinics are first-line)
What antibiotic should be prescribed for a UTI in pregnancy?
1st line - Nitrofurantoin (not a term)
2nd line - amoxicillin or cefalexin
What triad must be met before diagnosing Hyperemesis gravidarum?
5% pre-pregnancy weight loss
dehydration
electrolyte imbalance
What is the 1st line treatment for Hyperemesis gravidarum?
1st line - Oral cyclizine or oral promethazine (antihistamines)
What is the 2nd line treatment for Hyperemesis gravidarum?
2nd line - ondansetron and metoclopramide
Should women have cervical screening when pregnant?
Cervical screening in pregnancy is usually delayed until 3 months post-partum unless missed screening or previous abnormal smears
What SSRIs are suitable for breastfeeding women?
Sertraline or paroxetine
After how many weeks of gestation can someone be diagnosed with gestational diabetes?
20 weeks
Which anticoagulant is safest to use in pregnancy?
Low molecular weight heparin
What are the thresholds for diagnosing gestational diabetes?
fasting glucose is ≥ 5.6 mmol/L
2-hour glucose is ≥ 7.8 mmol/L
At how many weeks is the combined test offered?
Between 11 - 13+6 weeks
At how many weeks is the quadruple test offered?
Between 15 - 20 weeks
What indicates an increased risk of down syndrome on the quadruple test?
↓ Alpha-fetoprotein, ↓ Unconjugated oestriol, ↑HCG, ↑ Inhibin A
What indicates an increased risk of Edward’s syndrome on the quadruple test?
↓ AFP
↓ oestriol
↓ hCG
↔ inhibin A
What medication is the first line in the treatment of infertility in PCOS?
Clomifene
What medications can be used to treat PCOS?
Combined oral contraceptive
If contraindicated: Levonorgestrel-releasing intrauterine system
What treatment should be given if mothers who are hepatitis B surface antigen positive, or are known to be high risk of hepatitis B?
1st dose of hepatitis B vaccine soon after birth
Those born to mother’s who are surface antigen positive should also receive 0.5 millilitres of hepatitis B immunoglobulin within 12 hours of birth.
The baby should then further receive 2nd dose of vaccine at 1-2 months & 6 months.
How should eclampsia be treated?
Magnesium treatment should continue for 24 hours after delivery or after last seizure
What are the contraindications for HRT?
Current or past breast cancer
Any oestrogen-sensitive cancer
Undiagnosed vaginal bleeding
Untreated endometrial hyperplasia
What blood test can be done to measure if a woman is ovulating?
Day 21 progesterone
What should be done if you miss a pill on the progesterone-only pill?
< 3 hours late: continue as normal
> 3 hours: take the missed pill as soon as possible, continue with the rest of the pack, extra precautions until 48 hours after
But if using desogestrel - only if >12hrs then precautions needed
For how long is additional protection required when starting the POP?
If started up to and including day 5 of the cycle it provides immediate protection, otherwise additional contraceptive methods should be used for the first 2 days.
What is the most common side-effect of the POP?
Irregular vaginal bleeding is the most common problem
What is the classic triad of Vasa Previa?
Rupture of membranes followed by painless vaginal bleeding and fetal bradycardia
What should be done if one COCP is missed?
Take the last pill, then continue taking pills daily
No additional contraceptive protection needed
Is emergency contraception required if 2 or more COCP are missed?
Week 1 (Days 1-7): emergency contraception if she had unprotected sex in the pill-free interval or in week 1
Week 2 (Days 8-14): no need for emergency contraception
Week 3 (Days 15-21): finish the pills in her current pack & start a new pack the next day; thus omitting the pill-free interval
What should be done if two COCP is missed?
- Take the last pill even if it means taking 2 pills in 1 day, leave any earlier missed pills then continue normally
- Use condoms or abstain from sex until she has taken pills for 7 days in a row
What investigation should be done for suspected placenta previa?
Transvaginal ultrasound scan - this is the gold standard investigation
How long does each contraceptive take to be effective?
Instant: IUD
2 days: POP
7 days: COC, injection, implant, IUS
What are the indications for an IGTT in weeks 24-28?
BMI above 30 kg/m²
Previous macrosomic baby weighing ≥ 4.5 kg
Previous gestational diabetes
Family history of diabetes (first‑degree relative)
An ethnicity with a high prevalence of diabetes
What are the features of the thyrotoxic phase of postpartum thyroiditis?
Painless goitre, palpitations, tremors, sweating, diarrhoea, weight loss & anxiety
How is the thyrotoxic & hypothyroidism phase of postpartum thyroiditis managed?
Thyrotoxic - Propranolol is typically used for symptom control
Hypothyroidism - thyroxine
What are the three stages of postpartum thyroiditis?
- Thyrotoxic phase
- Hypothyroidism
- Normal thyroid function (usually)
When should rhesus-negative women get doses of anti-D?
1st dose - 28 weeks
2nd dose - 34 weeks
What is the cut-off for the treatment of anaemia in pregnancy?
First trimester < 110 g/L
Second/third trimester < 105 g/L
Postpartum < 100 g/L
How is a termination of pregnancy carried out?
< 9 weeks = mifepristone then 48hrs later misoprostol
> 9 weeks = surgical
What is the medical management of a miscarriage (if retained products of conception)?
Vaginal misoprostol
How should gestational diabetes be managed?
< 7 mmol/l a trial of diet and exercise should be offered
If target not met in 2 weeks = metformin
If still not met = insulin
≥ 7 mmol/l insulin should be started