DNA
How does cell-free fetal DNA testing work
How cell-free fetal DNA testing works Cell-free fetal DNA (cffDNA) testing is a non-invasive prenatal screening method that analyzes fetal DNA circulating in the mother’s blood to assess the risk of certain chromosomal abnormalities. Here’s how it works: How Cell-Free Fetal DNA Testing Works 1. Sample Collection Timing: The test can be performed as early […]
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