well, because of your age you will automatically be higher risk then if you were 25 and all the blood work came out the same because age does factor in. However, other aspects of the screen and blood work add to the high risk diagnosis. that is why so many women 36, 41, etc...come back as low risk. I came back as low risk (DS 1 in 6000 or something like that), but I am still getting an amnio done.
Blimey, you're braver than me! I've decided I'll only have an amnio if my risk factor comes back at less than 1 in 100. I.e. only if the risk is greater than the possible risk of miscarriage from having the amnio.
I know, but for me I feel I need to know the possible genetic and developmental defects (that I can know via the amnio) before giving birth--even though there is a miscarriage risk. it wasn't an easy decision, and I still go back and forth on it.