Obs & Gynae Flashcards
What are 4 physiological changes expected in pregnancy? (4)
- HR increased 10-20bpm
- BP increased 10-15mmgHg by 20 weeks but should be normal by delivery
- Alk Phos x3-4 increase
- Non-specific ST/T changesand LAD secondary to diaphragm
What is the advantage of VQ over CTPA in pregnancy?
Decreased radiation to maternal lung and breast tissue
What is a CXR radiation dose equivalent to?
1 week in London
Which antibiotics are c/i in pregnancy?
Trimethoprim and tetracyclines (doxy)
When should NSAIDs be avoided in pregnancy?
3rd trimester
Which opiate is preferred in pregnancy?
DH118
What anti-hypertensives should be avoided in pregnancy?
Ace inhib/ ARBS
Which anti-epileptics should be avoided in pregnancy?
Sodium valporate
When are pregnant women at increased risk of aortic dissection?
3rd trimester
What is the increased risk of ACS in pregnancy?
3-4 x
What symptoms is suggestive of physiological breathlessness of pregnancy and how common is it?
SOB improves on mild exertion
75 % women
What is posterior reversible encephalopathy syndrome (PRES)?
- 3rd trimester headache, with pre-eclampsia
- headaches/seizures/corticul blindness
- vasogenic brain oedema
How do you treat Posterior Reversible Encephalopathy Syndrome (PRES)? (2)
- Anti-hypertensives
- Magnesium
What is Reversible Cerebral Vasoconstriction Syndrome (RCVS)?
Post partum headache
Severe HTN and thunderclap headache
Multifocal segmental cerebral artery vasoconstriction
How do you treat Reversible Cerebral Vasoconstriction Syndrome (RCVS) ?
Nimodopine
When does acute fatty liver of pregnancy occur?
3rd trimester
Abnormal LFTs in pregnancy and pruritis are suggestive of which disorder?
Intrahepatic cholestasis of pregnancy
What is HELLP syndome?
Haemolysis
Elevated Liver enzyems
Low Platelets
A pregnant women < 6/40 with bleeding and no concerning features what should be advised? (3)
- Home and return if increased bleeding or pain
- Repeat pregnancy test 7-10 days and if negative miscarriage and postive EPAU < 24hours
When 2 BHCGs are taken 48 hours apart by what value should it increase if the pregnancy is likely to be viable and what should be offered?
- more than 63% increase
- US 7-10days (sooner if >1,500 IU/L)
What decrease in BHCG between two samples taken 48 hours apart would you expect in a miscarriage? If this is the case what should be advised?
- more than 50% decrease
- Pregnancy test in 2 weeks - if negative confirmed, if positive EPAU <24 hours
If BHCG decreases by less than 50% or increases by less than 63% in 48 hours what should be done?
EPAU review < 24 hours
What should women with threatened miscarriage be advised?
- If bleeding continues past 14 days or increases then represent
If women with threatened miscarriage have had a previous miscarriage what medication should be offered?
Progesterone 400mg BD
What is first line management for miscarriage?
Expectant - 7 to 14 days wait for bleeding to stop.
Repeat BHCG 3 weeks after bleeding stops to confirm
If no bleeding needs US
What is used to manage a miscarriage medically?
800mcg misoprostol (vaginal best, oral if not)
Then pregnancy test 3 weeks later to confirm
Under what conditions can a tubal ectopic be managed expectantly? (3)
- Stable and painless
- <35mm
- BHCG <1000
If expectant management of tubal ectopic is not acceptably what medical tx is used?
Methotrexate
Under what conditions can methotrexate be used in managing an ectopic? (3)
- Stable and painless
- <35mm
- BHGC <5000
Following expectant or medical management of tubal ectopic how often should BHCG be performed and how much should it drop by?
- Day 2,4,7 and then weekly until normal
- 15% every time
How is an ectopic managed surgically? (2)
- Salpingectomy if no risk for decreased fertility
- Salpingolectomy if risk factors for decreased fertility
Under what conditions should anti-resus D be used in women who have had surgical management of miscarriage or ectopic and what dose?
- Resus negative women
- 250 IU
Which women with bleeding in pregancy should get anti-resus D and at what dose?
- All
- 250 IU if < 20 weeks
- 500 IU if > 20 weeks
What is the Kleihauer test?
Gives indication of feto-maternal haemmorhage