Prenatal Flashcards
1
Q
At which point in a pregnancy can you measure maternal serum Alpha feto-protein?
A
between 15-20 weeks
2
Q
What is a common cause for elevated alpha feto-protein?
A
Neural tube defects or twin gestations
3
Q
What would you expect from a decreased maternal serum alpha feto-protein?
A
Trisomy 21, 28, or 13
4
Q
When is the best time to do an amniocentesis?
A
between 14 and 20 weeks
5
Q
What is likely to happen if you attempts an amniocentesis prior to 14 weeks?
A
There is a greater chance for fetal loss.
6
Q
What is the major concern about doing a CVS?
A
That it may be contaminated with the maternal cells and lead to a diagnosis that is not true. it may also lead to a miscarriage
