I haven't seen any prenatal screening
questions here; perhaps i'm in the wrong
place.
Here goes anyway...
My wife has just received results from a
first trimester (she's just started her
second trimester) "ultrasceen," which
tests nt, papp-a and free beta hcg... The
first two were normal, but the beta hcg
came back at 2.3 ... Any possible
reasons (other that the obvious) for a
high hcg level?