Congrats on your pregnancy!! Hon, I'm a mom to a little boy with Down Syndrome as well as a "typical" son.
EIF's are quite normal. They are considered a "Soft Marker" for Down Syndrome and normally if 2 or more soft markers are noted the doctor will suggest prenatal testing. Having 1 soft marker is generally no cause for concern especially if your blood work seems good so far.
When it came to my pregnancy I was already having prenatal testing for a genetic issue when we found out our son had DS. He's 4 1/2 now and I do not remember what all he had as far as ultrasounds go.
My 2nd son actually had an EIF, or a calcium deposit but was born healthy and "typical".
Your baby is going to be healthy and things should turn out alright. Doctors try to be on the cautious side when babies are concerned.
I've also read that they clear up on there own.. just relax and pray.. I'm sure you'll be fine girly .... I had a high risk for ds and today I went in for my anatomy scan and everything looked great as to abnormality wise... prayers really do magic! I hope you the best my dear!!
Ive heard it happens then clears up, talk to God pray about it because im the oppisit my sonogram looked great but my risk is 1/220 I don't feel afraid anymore ill keep my faith in Gods hands I know he won't give u more then u can handle.. sorry I feel u ill be twenty weeks in two days!