Tag «testing»

What can an amniocentesis tell you?

Amniocentesis is sometimes called an “amnio” or a “tap.” Between the 12 and 16th weeks of gestation (14-18 weeks pregnancy) you may be offered an amniocentesis. This test is performed by inserting a needle through your abdomen into the uterus and amniotic sac and collecting a sample of the fluid. Because of the risk of …

What is the alfa-feto protein screen?

The Alpha-Feto Protein (AFP) Screen is a blood test to screen for neural tube and chromosomal abnormalities. It has a high incidence of false positives which is normal for many screening tests — with screening tests it is important to know who does NOT need more extensive testing.  It is possible, but much more rare, to a …