genetic screening

• pre-implantation gene condition diagnosis

  embryo is created through IVF and is tested before being implanted
• CVS


  at 8-12 weeks a sample of embryonic tissue is taken from placenta and the DNA is analysed
• Amniocentesis 


  at 14-16 weeks a sample of amniotic fluid (feotal cells) taken using a needle. DNA is analysed
• how can genetic screening be used

  to identify carriers

  detect abnormal alleles

  used to asses probability of child having disease
• genetic counselling 


  provide advice about risks of having baby with disease

  help understand how it is inherited

  explain test results and courses of action

  treatment options

  help couple if they want kids, testing, IVF