Help! 12 week NT timing question

[OceanPrincess]

Short reply sorry (in bed should be sleeping!!) but I had all four of my NT blood tests done between 10 and 11 weeks for the express purpose of the sonographer doing the interpretation. Even for the miscarriage, I'd already has the bloods done. Always did it before the scan.

HTH in some way.

[HotI]

the midwife is mistaken. bloods are usually done a week before, as the GP and radiology place said.

I used to work in this area, and if you google 'first trimester screening ghsv' you will find a brochure that gives date ranges for when bloods and ultrasound can be done.