The first recorded spelling of the family name is shown to be that of Walter de la Birche, which was dated circa 1182, in the Studies on Middle English Local Surnames, during the reign of King Henry 11, known as The Builder of Churches, 1154 - 1189.
For Downâs syndrome, a blood test called the quadruple test is available from weeks 14-20 of pregnancy. For Patauâs and Edwardsâ syndromes, you will be offered a mid-pregnancy scan that checks for physical abnormalities.
Safe Blood Test for Down Syndrome. Quake started looking for a better way to screen. He knew that a small amount of fetal DNA enters a pregnant woman's bloodstream. Researchers already were trying to separate that DNA from the mother's own DNA, but were having little luck. That's when Quake had a brainstorm.