And also, the nurses just relay the information that is printed on your charts from the doctor... Most "nurses" at clinics are usually LPNs or CMA's and have to work under direction of a doctor. It is a hard job and frustrating when patients blame the nurses. They're just told to relay the message and always get pooped on for it. Just know it's not their fault!
The Down syndrome test has a high risk for false positives/negatives and the mistake happens a lot! It his is just coming from someone who works in healthcare... But idk about you, but I know I would rather be safe than sorry especially since preeclampsia can be dangerous for your baby! I get its frustrating but it's always better to test twice and be sure than to test once and wonder... But as far as the Down syndrome test, that does happen quite frequently. At our clinic we do let patients know that though before the test is done!
If you are uncomfortable then yes change docotrs but if it something you can deal with then I wouldn't.