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Amniocentesis


What is an Amniocentesis?

  • Amniocentesis is a prenatal test used to identify various genetic problems or test a baby's lung maturity.
  • Genetic amniocentesis are usually performed on women with a prior history of a baby with a chromosome abnormality, neural tube defect, abnormal result from a prenatal screening test, family history of a genetic disorder or maternal age.
  • Maturity amniocentesis is performed to determine whether the baby's lungs are ready for birth.


Risks

  • Amniocentesis carries various risks, which your physician will discuss with you.


The Procedure

  • Guided by ultrasound your physician will insert a slender needle through your abdominal wall, into the amniotic sac.
  • About 1 ounce of amniotic fluid is withdrawn through the needle and sent to the laboratory and cells are cultured and analyzed.


Results

  • For genetic analysis, results are typically available in 10 days.
  • For lung maturity analysis, results are typically available in 24 hours.
  • Our office will notify you with your results as soon as possible.


Preparations for Genetic Amniocentesis

  • Prior to your amniocentesis a diagnostic evaluation of the fetus will be performed. In order to obtain high quality images please drink 24 ounces of clear fluid one hour before your appointment. Please do not empty your bladder before the ultrasound.
  • Please plan on 90 minutes to complete this exam.
  • It is recommended you do not bring children to this exam. Children can be distracting and intimidated during this procedure.
  • This is a diagnostic evaluation of the fetus, requiring the full attention of the sonographer, along with interaction with your physician.


Post Amniocentesis Instructions:

We recommend no strenuous activity for 12-24 hours. It is advised that you go home and rest during this period. You may experience mild pain or aching under the needle site.

Call if you develop any of these symptoms:
  • Vaginal bleeding or leaking of fluid
  • Contractions
  • Fever within 48 hours
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All content ©2006 Grand Valley Gynecologists, P.C.
1900 Wealthy SE, Suite 330
Grand Rapids, MI 49506

4600 Breton SE, Suite 202
Kentwood, MI 49508

Fax 616-774-0651
Phone 616-774-0700