Q. What age is genetic testing done?
Doctor Answer is medically reviewed by SecondMedic medical review team.
Genetic testing can be performed at various ages, depending on the specific reasons and circumstances. Here are some common situations and age ranges for genetic testing:
Newborn Screening: In many countries, genetic testing is routinely conducted shortly after birth as part of newborn screening programs. These tests are designed to detect certain genetic disorders that can be treated early in life. Common conditions screened for include phenylketonuria (PKU), cystic fibrosis, and congenital hypothyroidism.
Prenatal Testing: Genetic testing can be offered during pregnancy to assess the genetic health of the developing fetus. Tests like amniocentesis and chorionic villus sampling (CVS) are typically performed in the first trimester for various reasons, such as advanced maternal age, family history of genetic disorders, or abnormal ultrasound findings.
Childhood and Adolescence: Genetic testing may be recommended during childhood or adolescence if there are signs or symptoms of a genetic disorder, a family history of genetic conditions, or a specific medical concern. Examples include testing for muscular dystrophy, Marfan syndrome, or hereditary cancer syndromes.
Adulthood: Genetic testing can be pursued by adults at any age, especially if there is a family history of genetic disorders or a desire to understand one's genetic predisposition to certain health conditions, such as cancer, heart disease, or Alzheimer's disease. This type of testing is typically done on an individual's own initiative.
Preconception and Carrier Testing: Couples planning to have children may undergo genetic testing to assess their carrier status for certain genetic conditions before conceiving. This is often done during the preconception period.
Cancer Risk Assessment: Some individuals may consider genetic testing for hereditary cancer syndromes, such as BRCA1 and BRCA2 mutations, if they have a family history of cancer or personal risk factors. This can be done at any age but is more common in adulthood.
Aging and Health Management: As individuals age, they may be interested in genetic testing to understand their risk for age-related conditions, like Alzheimer's disease. This can be done in later adulthood.
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