Explain, please, for what analyses the blood from a vein during be undertakes...

[Elena]

Explain, please, for what analyses the blood from a vein during pregnancy and how much time undertakes.
Whether it is possible to do or make US.

[Malanova T.B.]

1. I not the doctor of female consultation, therefore do not know the list of obligatory analyses for the pregnant woman. 2. US can not do or make, your right.