Prenatal genetic testing is performed during pregnancy to evaluate the genetic health of the fetus. These tests can detect chromosomal abnormalities like Down’s syndrome as well as single-gene disorders, providing critical information for managing high-risk pregnancies. Early identification helps parents make informed decisions regarding the pregnancy and plan for any required medical care.
Types of Prenatal Genetic Testing:
Non-Invasive Prenatal Test (NIPT):
- A maternal blood test performed as early as 10 weeks.
- Detects chromosomal abnormalities such as Down’s syndrome.
Indications:
- History of previous miscarriages.
- Previous pregnancy affected by a genetic disorder.
- Advanced maternal age (35 years or older).
- Reporting Time: Approximately 10 working days.
Chorionic Villus Sampling (CVS):
- An invasive procedure where a small sample of placental (fetal) tissue is taken.
- Screens for single-gene disorders.
Indications:
- Both parents are known carriers of a genetic disorder.
- Previous child diagnosed with a specific genetic condition.