Wednesday, 21 November 2018

How to Decide About Prenatal Genetic Testing

How to Decide About Prenatal Genetic Testing
13 Aug
6:30

There are many prenatal genetic testing options available today that can provide information about genetic conditions or birth defects in the baby Which tests, or whether to undergo any of these tests in pregnancy is your choice

One of the most important questions to consider when deciding about prenatal testing is: what will this information mean for you? Knowing the answer to this question can help you make the choices that are right for you Prenatal genetic tests can be put into two categories: 1) Diagnostic tests: such as amniocentesis and chorionic villus sampling (CVS) can provide definitive, "yes or no", results, however these tests involve some risk, including a chance of miscarriage 2) Screening tests: include blood draws such as Maternal Serum Screening, Prenatal cfDNA screening and ultrasound In general, screening tests pose no risk to the baby, however they only tell you if the chance of a genetic condition or birth defect is higher or lower and do not give you "yes or no" answers Prenatal genetic testing is your choice

Some women would prefer "yes or no"answers and since screening tests, such as maternal serum screening and cell free DNA screening cannot provide that, they may choose to go straight to a more definitive test, such as CVS or amniocentesis Or, they may consider a diagnostic test after having a screening test that suggests a higher chance of a genetic condition in their baby Questions to consider regarding diagnostic testing include: If your baby had a genetic condition, would you want to know before birth? for example, some women would want to know if their baby had a genetic condition or birth defect because they would want to be able to prepare before delivery Some women would consider making an adoption plan for their baby and some would consider ending the pregnancy if they knew their baby had a genetic condition Do you feel like "yes or no" answers would help you feel less worried? Are you comfortable with the risk of miscarriage associated with these procedures? Questions to consider regarding screening tests such as Maternal Serum Screening or cfDNA Screening include: How would you feel if results indicated a higher chance for a genetic condition or birth defect? Would you consider a diagnostic test if a screening test indicated an increased chance for a genetic condition? If not, would you be ok waiting until the baby is born to know for sure if the condition is present? Do you think this information would help you feel more prepared? Does more information with the possibility of uncertainty make you anxious? Some women feel that prenatal genetic testing is not right for them

Consider these questions: Would you prefer not to face the decision of whether or not to have a diagnostic test if your screening test came back with a result showing your baby has a higher chance of having a genetic condition? Are you confident that, even if the baby did have a genetic condition, it wouldn't change your pregnancy plans? There are many prenatal tests available, and your healthcare professional will be able to determine, based on a number of factors, which prenatal testing options are the most appropriate to offer you The decision to undergo prenatal genetic testing is personal and should reflect your values, personality, beliefs and needs Your decision may be very different than the path your friend or neighbor might takeand that's okay In most cases, prenatal genetic testing is a choice and the best way to make the decisions, that are right for you, is to be informed

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