History of Amazon Reveals Original Name and Jeff Bezos' Temper. A number of little-known facts surrounding Amazon's rise as an ecommerce powerhouse are explored in a new book called The Everything Store: Jeff Bezos and the Age of Amazon by Businessweek senior writer Brad Stone, released on Tuesday.
Different screening tests are offered at different times during pregnancy. The screening test for sickle cell and thalassaemia should be offered before 10 weeks. You will be offered screening for Down's syndrome around the time of your dating scan, which happens when you are around 11 to 14 weeks pregnant.
2. A nuchal translucency scan (also called first trimester of pregnancy screening) is carried out during weeks 11â13 of a pregnancy. The scan uses ultrasound to screen for Down syndrome, or other chromosomal or inherited conditions in the foetus.our doctor would recommend a nuchal translucency scan: 1  to confirm the exact date of the pregnancy and the due date; 2  to confirm the number of foetuses (single or multiple); 3  to confirm that the foetus is growing appropriately and appears to be developing normally;