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Prenatal Genetic Screening

A "snapshot" of prenatal genetic screening

Joy W

on 3 April 2013

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Transcript of Prenatal Genetic Screening

What is Prenatal Genetic Testing? Effects of Prenatal Screening Wendy Lacey: A Case Study Prenatal Genetic Screening How Does it Work? Benefits Considerations and Concerns Able to find the possibility of your child having a defect
Indicates whether a diagnostic test is needed
Depending on results, you can choose whether to have child or not
Can help mother prepare for a baby with a disorder
Doctors can prepare a team of experts to be ready when baby is born Small risks of causing a miscarriage
Cost is approx. $500 but in BC, all fees are covered by BC Health Care
Patient might not want to know the possibility
The results might change your perspective/decision
The tests might cause miscarriage Thank You
Tests the chance of a genetic disorder in fetuses

An option for pregnant women - not required

Involves an ultrasound and 2 blood tests during the first trimester of pregnancy (In British Columbia)

Additional diagnostic test can be taken depending on results. Ultrasound Results measures the thickness of liquid under the fetal neck
may not have a normal number of chromosomes in cell Blood Tests measures for 2 substances found in blood:
PAPP-A: a protein
hCG: a hormone
produced in early stages of pregnancy
Abnormal levels increased risk for chromosome abnomality Ethical Dilemmas • May not identify all the possible gene mutations
• May not provide all the information that families may want
• Involves the decision to continue or to end a pregnancy without having knowledge of the severity of the disorder
• Some religions consider any interference with the natural act of reproduction to be immoral
• Individuals who were carriers for genetic abnormalities may be encouraged to not reproduce again Negative: Unlikely to have a defect
Positive: More likely to have a defect
further diagnostic tests are usually done Further Diagnostic Tests Amniocentesis: A doctor uses a needle to take a small sample of fluid from the bag surrounding the baby.
Chorionis Villus: A doctor uses a needle to take a small sample of tissue from the placenta What were Wendy's Choices? Her decision? Bibliography "Ethical Issues In Genetic Testing." Medscape News Today. N.p., n.d. Web. 4 Mar. 2013.

"Prenatal Genetic Screening Tests.” - January 15, 2009 - American Family Physician." Home Page -- AAFP. N.p., n.d. Web. 4 Mar. 2013.

"What is prenatal genetic screening." BC Prenatal Genetic Screening Program. N.p., n.d. Web. 4 Mar. 2013.

"First Trimester Screening for Birth Defects-Topic Overview." WebMD - Better information. Better health.. N.p., n.d. Web. 5 Mar. 2013.

Theo, Dawna. "Prenatal Genetic Testing Benefits | eHow.com." eHow | How to Videos, Articles & More - Discover the expert in you. | eHow.com. N.p., n.d. Web. 5 Mar. 2013.

"Common Tests During Pregnancy." Packard Children's Hospital at Stanford LPCH: Northern California Children's Hospital . N.p., n.d. Web. 8 Mar. 2013.

Edelson, Edward. Birth Defects. New York: Chelsea House, 1992. Print.

"Mixed Messages: The Intersection of Prenatal Genetic Testing and Abortion by Rachel Rebouche, Karen Rothenberg :: SSRN." Social Science Research Network. Howard Law Journal, 29 Aug. 2012. Web. 14 Mar. 2013. To either continue her pregnancy or to choose abortion She wants to accept her baby girl the way she is and knowing that her child has down syndrome did not affect her decision
She also was not scared of being pregnant again and she had her third baby boy after her second child with down syndrome Personal Statement We believe that prenatal genetic screening is important because patients have the right to know about the conditions of their own babies and the responsibilities they may have to take on. Although there are a lot of ethical issues surrounding this topic, this test was developed for our benefit. If we think about the considerations before the test, it can lead to a more prepared and healthy family.
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