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Amniocentesis

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Amniocentesis


  • sampling of amniotic fluid
  • 15-16 weeks
  • traditional method
    • spun down
    • foetal fibroblasts isolated and cultured
    • karyotyping takes approximately 2 weeks
  • FISH
    • may get result in 24 hours
  • early amniocentesis now at 11-12 weeks but increased risk of loss

Risk

  • 0.5-1% risk of pregnancy loss
 

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