2K HB Primer Surfacer. 2K HB Primer Surfacer. 2K HB Primer Surfacer is a two-component fast curing high-build urethane primer surfacer. 2K Primer Surfacer provides exceptional build and good holdout in combination with all U-TECH topcoats.
CVS is usually performed between 10 and 13 weeks from your last menstrual period. CVS may be chosen over amniocentesis because it may be performed earlier in the pregnancy. Chorionic villus sampling detects chromosome abnormalities (i.e. Down syndrome) and genetic disorders (i.e. cystic fibrosis.).
Chorionic villus sampling. Introduction. Chorionic villus sampling (CVS) is a test you may be offered during pregnancy to check if your baby has a genetic or chromosomal condition, such as Downâs, Edwards' or Patau's syndromes. It involves removing and testing a small sample of cells from the placenta (the organ linking the motherâs blood supply with her unborn babyâs).