What Is the Ideal Fetal Fraction for Accurate Gender Determination?
Discover the optimal fetal fraction percentage for reliable gender prediction in prenatal testing.
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A good fetal fraction for gender determination is typically above 4%. The fetal fraction refers to the percentage of fetal DNA in the mother's bloodstream. For accurate non-invasive prenatal testing (NIPT), a higher fetal fraction increases reliability. Most testing companies recommend a minimum of 4%, although results are more reliable as the fetal fraction increases, ensuring accurate determination of the baby’s gender.
FAQs & Answers
- What fetal fraction is considered reliable for NIPT? A fetal fraction above 4% is generally considered reliable for non-invasive prenatal testing.
- How does fetal fraction affect gender determination accuracy? Higher fetal fractions improve the accuracy of gender determination, with results being more reliable as the percentage increases.
- Can I find out my baby's gender with a low fetal fraction? While it's possible, a low fetal fraction may lead to less accurate gender prediction results.