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amniocentesis Definition

am·nio·cen·tesis (am′nē ō′sen tēsis)

noun

the surgical procedure of inserting a hollow needle through the abdominal wall into the uterus of a pregnant woman and extracting amniotic fluid, which may be analyzed to determine the sex of the developing fetus or the presence of disease, genetic defects, etc.

Etymology: ModL < amnion + Gr kentēsis, a pricking

amniocentesis Usage Examples

Converse of object

  • offer: If these scans give more cause for concern you may be given counseling and be offered an amniocentesis.
  • have: She had gone back to the doctor and had an amniocentesis done.
  • do: They asked my permission to do an amniocentesis to check for fetal lung maturity.
  • use: Millions of parents have already used amniocentesis and sonograms to diagnose Down's syndrome or cystic fibrosis.
  • undergo: It also means that older mothers can be given a low risk for Down syndrome without having to undergo an amniocentesis.
  • follow: One death followed amniocentesis; a few followed miscarriage or termination.

Modifies a noun

  • test: The amniocentesis test will show whether the baby has normal chromosomes or is affected.
  • result: Amniocentesis results take two ( worrying ) weeks to return.
  • procedure: Between 1 in every 100 and 1 in every 200 amniocentesis procedures will cause a miscarriage, usually within three weeks of the procedure.
  • miscarriage: This causes a huge amount of emotional distress, not least because chorion villus sampling or amniocentesis causes miscarriage in 1-2 % of pregnancies.

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