Flashcards in Obstetrics Deck (184)
What is meant by gravidity?
No. of pregnancies a woman has had
What is meant by parity?
No. of pregnancies that went beyond 28 weeks' gestation that resulted in delivery
What is meant by "para 2+1"?
Woman has had 2 pregnancies beyond 28 weeks and 1 pregnancy terminated/miscarried before 28 weeks
How do you calculate an estimated date of delivery (EDD) of a baby?
1 year + 7 days after LMP, minus 3 months
What happens to red cell volume during pregnancy and what is the consequence of this?
Red cell volume increases, causing dilution of Hb and a physiological anaemia
Treat with iron supplements
What happens to blood pressure during pregnancy?
High in 1st trimester
Falls in 2nd trimester until about 22 weeks
Steady rise to normal by end of term
High blood pressure should normalise within 6 weeks post-partum
When is a pregnancy test +ve?
9 days post-conception until 20 weeks gestation
Can be positive up to 5 days after miscarriage
When is the booking antenatal visit?
When is the dating USS done?
Around 10 weeks
When is the Down's syndrome nuchal thickness test done?
Can be done with dating scan around 10-11 weeks
When is the anomaly scan done?
When is the first routine check-up antenatal visit?
When may a woman receive anti-D prophylaxis?
28 and 34 weeks' gestation
When is the triple assessment for Down's syndrome carried out and what does it measure?
Nuchal thickness, bHCG and PAPPA levels
Tricyclics are usually OK to prescribe in pregnancy. True/False?
but may have withdrawal effects in the foetus
Which SSRI has the lowest risk for use in pregnancy?
Breastfeeding is contraindicated in those taking psychiatric drugs. True/False?
Generally true, especially citalopram and fluoxetine
Consult psychiatrist for specialist advice
When is lithium most teratogenic in pregnancy?
BZD use is contraindicated in pregnancy. True/False?
How much folic acid is recommended during pregnancy?
0.4mg until 12th week at least
5mg if increased risk of NTD's (diabetes, epilepsy, obese)
Radioiodine and carbamazepine are safe in pregnancy. True/False?
Contraindicated - use propylthiouracil instead
When should trimethoprim and nitrofurantoin be avoided in pregnancy?
Avoid trimethoprim in the first trimester
Avoid nitrofurantoin in the third trimester
In which trimester is there an increased risk of seizures?
Which anti-epileptic drug has the lowest risk in pregnancy?
Breastfeeding is safe in those taking anti-epileptics. True/False?
When should methotrexate be stopped with regards to pregnancy?
3 months before trying to conceive
Why should NSAID's be avoided in the 3rd trimester?
Can cause premature closure of the ductus arteriosus
Which rheumatological antibodies can cross the placenta and cause congenital heart block?
What should patients with antiphospholipid syndrome take in pregnancy?
Aspirin and enoxaparin from 6-34 weeks' gestation