Passmedicine Flashcards
(204 cards)
What is group B strep also known as?
Streptococcus agalactiae
What is the prophylaxis given to mothers for group B strep?
Intrapartum IV benzylpenicillin (during delivery).
When should mothers be given prophylaxis for group B strep?
- If GBS has been detected in a previous pregnancy - mothers can have prophylaxis OR can be offered testing in late pregnancy then abx if still positive.
- Previous baby with early or late onset GBS disease
- Preterm labour
- Pyrexia >38 during labour
If women are tested for GBS when should it be done?
35-37 weeks
OR
3-5 weeks prior to delivery date
If you have had GBS detected in a previous pregnancy, what’s the chance of developing it again?
50%
What are the UKMEC 3 conditions for COCP?
- > 35 years and smoking <15 per day
- BMI >35
- Family history of VTE in first degree relatives <45 years
- Controlled hypertension
- Immobility (wheelchair)
- Carrier of BRCA1/BRCA2
- Current gallbladder disease
What are UKMEC4 conditions for COCP?
- > 35 years and smoking >15 per day
- Migraine with aura
- History of thromboembolic disease or thromboembolic mutation
- History of stroke or IDH
- Breast feeding < 6 weeks post party
- Uncontrolled hypertension
- Current breast cancer
- Major surgery with prolonged immobilisation
- Positive antiphospholipid antibodies (SLE)
When should the COCP be stopped and started regarding surgery?
Should be stopped 4 weeks before
Restarted 2 weeks after
What is HELLP syndrome?
- Haemolysis
- Elevated liver enzymes
- Low platelets
What is the definition of pre-eclampsia?
New onset HTN >140/90 after 20 weeks of pregnancy
AND 1 or more of:
- proteinuria
- other organ involvement (kidney insufficiency, liver, neurological, haematological, uteroplacental dysfunction)
When are women with pre eclampsia likely to be admitted to hospital?
If they have a blood pressure >160/110
What is placental abruption?
Separation of a normally sited placental from the uterine wall - resulting in maternal haemorrhage into the intervening space.
What are the clinical features of placental abruption?
- Shock out of keeping with visible loss
- Constant pain
- Tender tense uterus
- Normal lie and presentation
- Foetal heart absent or distressed
- Woody hard uterus (because the blood fills the myometrium)
What is the time until effective for different contraceptives?
If not first day of period
Immediately - IUD
2 days - POP
7 days - COCP, injection, IUS
When can different contraceptives be started after pregnancy?
IUS and IUD - within 48 hours OR after 4 weeks
POP - Any time
COCP - after 21 days (CI in women <6 weeks post parum and breastfeeding)
What is an amniotic fluid embolism?
When foetal cells or amniotic fluid enters the mothers bloodstream and stimulates a reaction.
Usually occurs during labour or within 30 minutes after.
What are the symptoms of an amniotic fluid embolism?
Chills, shivering, sweating, anxiety, coughing.
Cyanosis, hypotension, bronchospasm, tachycardia, arrhythmia, MI.
What is the management of preterm pre labour rupture of membranes?
Admission
IM corticosteroids (stimulates surfactant)
Oral erythromycin for 10 days
In preterm pre labour rupture of membranes when should delivery be considered?
At 34 weeks gestation
What are the physiological changes of blood in pregnancy?
Reduced urea
Reduced creatinine
Increased urinary protein loss
What are the rules regarding levonorgestrel?
- Dose = 1.5mg
- Must be taken within 72 hrs after UPSI
- Double dose for BMI > 26 or weight >70kg
- Repeat dose if vomiting within 3 hours of taking tablet
- Can commence hormonal contraception immediately after
- Can be used more than once in one menstrual cycle
What are the rules regarding ulipristal?
- Dose = 30mg
- Must be taken within 120 hours of UPSI
- Contraception MUST be stopped until 5 days after taking it
- Barrier contraception must be used in between times
- Caution in patients with severe asthma
- Can be used more than once in one menstrual cycle
- Breast feeding must be stopped for 1 week after §
What are the rules regarding IUD when used as emergency contraception?
- Must be inserted within 5 days of UPSI OR within 5 days after the likely ovulation date
- Can be left in long term, if being removed, patient MUST wait until the next period
What is the most common cause of post menopausal bleeding?
Vaginal atrophy
Usually also causes pain during sex or dryness and post coital bleeding.