Difference 1: Check the differences of projects. If it is noninvasive plus, it can be used to detect abnormal numbers of sex chromosomes, abnormal numbers of other autosomes, and various chromosome microdeletions and microreplications.
Difference 2: accuracy. In terms of accuracy, the price difference of noninvasive dna is also obvious. If it is just routine non-invasive DNA, the accuracy is usually only 95%. If so, the accuracy can reach about 99%.
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Ordinary non-invasive; If women just want to test thoroughly and make themselves more at ease, but there is no critical risk, they just need to choose ordinary non-invasive dna.
Non-invasive upgrade; The upgraded non-invasive dna is more suitable for these people: elderly women over 35 years old, pregnant women who are IVF, pregnant women who have had multiple abortions, and pregnant women who are negative for hepatitis B virus or RH blood group.
One of the couples is a chromosome patient, a pregnant woman who is pregnant or has given birth to a child with chromosome diseases, a pregnant woman with positive serum screening and a pregnant woman who is unwilling to accept the risk of prenatal diagnosis. These people are more suitable for upgrading non-invasive dna.