O&G Flashcards
(249 cards)
Describe what happens to insulin in pregnancy
Release is increased
Resistance increases
Maternal insulin resistance
What Fetal compound antagonises maternal insulin
Fetal hPL
What is endovascular remodelling seen in the maternal uterus
spiral arteries Goes from low bore high resistance ->high bore low resistance
What can a mother do to optimise her foetus’s health?
Not smoke. Folic acid Stop teratogenic meds Don’t eat undercooked meats- listeria Avoid oily fish - pollutants and mercury Avoid liver - high vit A Maternal rubella vaccination Good control of preexisting med conditions
What medications are teratogenic
Valporate Warfarin Retinoids Trimethoprim ACEi Methotrexate Co amox
For what reasons might a woman need higher doses of folic acid?
Diabetes
Previous child/ relative with neural tube defects
On anticonvulsants
Up to what age is a neonate
Up to 28days
What is preterm
<37w
What is considered term
37-41w
What is considered low birthweight
<2500g
What weight is very low birthweight
<1500g
What weight is extremely low birth weight
<1000g
What is SGA?
Below 10th centile for gestation
What is large for gestational age?
> 90th centile for gestational age
What risks do maternal obesity carry
Miscarriage
Gestational diabetes
Pregnancy induced hypertension
Benefits of neonatal screening
Reassurance when it’s fine
Counselling
Early termination
Interventions in utero
What are the types of antenatal screening test?
Standard= maternal serum screen, detailed USS Advanced = chorionic villus sampling, fetal blood test, amniocentesis
Benefits of glucocorticoids before preterm delivery
Matures lungs - less RDS
Less risk of IVH
How many hours do steroids need to be given before birth
At least 24hours
When might a pregnant mother be given digoxin?
What the foetus is experiencing supraventricular tachyC
What is screened for in a maternal antenatal blood test ?
Blood group HIV Syphilis HepB Rubella Neural tube defects- raised alphafetoprotein Congenital abnormalities
Complications of oligohydraminos
IUGR
Facial and limb deformities - potters syndrome
Pulmonary hypoplasia
What information can be obtained in antenatal USS
Gestation of foetus
Growth of foetus
Anatomical abnormalities
Oligo/polyhydraminos
What is the Arnold chari malformation ?
Lemon shaped skull associated with spina bifida