Sept 2020 recall Flashcards
(25 cards)
Risk of placental abruption if 1 or 2 previously?
1= 4.4%
2= 25%
Still birth rate at 39 weeks
1/200
0.5%
Risk of parvovirus transmission?
<15 weeks
>15 weeks
Term
< 15 weeks= 15%
>15 weeks = 25%
term= 70%
Infection prior to 20 weeks has a 5-10% fetal loss
3-10% risk of hydrops
If maternal chickenpox 4 weeks before delivery what is the risk to baby?
50% risk of infection
23% risk of congenital varicella syndrome
This is higher risk is 7 days within delivery- all of these babies need VZIG prophylaxis on delivery
Prevalence of 3/4th degree tear following a forceps
6.7% with an episiotomy
21% without an episiotomy
Risk of PPH with physiological 3rd stage?
29/1000
(13/1000 with active)
What is the detection rate of a quadruple test?
And a triple test?
Quadruple- 70-75%
Triple- 90%
What is the detection rate of the combined test with twins?
72%
Which medications put you at higher risk of GDM?
Olanzapine
Advice to a pregnant woman taking mesalazine?
At risk of neonatal bloody diarrhoea
(same with sulfasalazine)
Avoid >3g/ day due to risk of nephrotoxicity
What is the main effect on vit D to calcium?
Vitamin D increases Calcium absorption in the small bowel
What drug is recommended alongside carbetocin in caesarean section to reduce blood loss?
TXA
What is the risk effect to the fetus from a VQ?
10x the radiation to fetus
What are the platelet thresholds or an operative birth, epidural and vaginal birth
Operative birth: >50
Epidural >80
Vaginal >40
What cardiac condition is di george associated with?
truncus arteriosus
Which SSRI is the most teratogenic (linked with cardiac abnormality)
Paroxetine
What is the FBC of b thalassaemia look like?
Low MCH (amount of haemoglobin in a sample), low MCV, normal ferritin
Hb will be higher if only a trait
Can be 20-80 if major
What does an FBC look like in sickle cell?
anaemia 60-80
high reticulocyte suggests haemolysis and can be suggestive of a sickling crisis
What does the newborn heel prick spot test screen for?
Sickle cell (1 in 2800), thyroid disease (1 in 2000), PKU (1 in 10,000), CF (1 in 2500), MCADD (fatty acid metabolism), Homocystinuria (babies can develop problems with their eyes), glutaric aciduria, isovaleric acidaemia (can’t break down breast milk), maple syrup urine disease (can’t break down ketoacids)
Risk to woman with Turners in pregnancy?
coarctation
dissection
What are CF patients more at risk of in pregnany?
GDM
When would you deliver a patient with red cell autoantibodies?
Typically between 37 and 38 weeks
How soon after an acute MI should you aim for delivery?
Aim to delay 2-3 weeks following treatment for MI
What is the increased risk of wound infection in morbid obesity? (how many x more)
7x more likely
