1When do you check for chromosomal abnormality like for down syndrome?
15-18 weeks (early gestation)
2What can cause fetal distress?
Anti-D antigens from mom breaks down fetal RBC
3When is karyotyping and genetic counseling done?
15-18 weeks
4What is Edwards Syndrome?
(3) chromosome 18
5What is Patau's syndrome?
(3) chromosome 13
6What will affect the L/S ratio?
if there is blood or meconium in sample due to use of gel to determine concentration based on darkness
7What does lamellar bodies do with pulmonary surfactants?
releases surfactant to lining of alveoli sacks
8What is the purpose of the Rhogam shot?
injects a dilute anti-D antigen so mother does not produce antibodies herself when rejecting fetus due to D-antigen presence from fetus