What is non-invasive testing?
Non-invasive testing is a non-invasive testing method that can be used to detect chromosomal abnormalities in the fetus. This technology has many advantages over traditional amniocentesis and chorionic villus sampling. The non-invasive test only needs to draw the mother\’s blood. The process is simple, safe and low-cost. Therefore, it has rapidly become widely used in diagnosing fetal chromosomal abnormalities. However, whether non-invasive testing is really reliable has attracted continued public attention.
What is the principle of non-invasive testing?
The main principle of non-invasive testing is to detect fetal cell-free DNA from maternal blood through technical means, and to screen and analyze haploid DNA fragments. If the fetus has chromosomal abnormalities, there will be significant differences in the test results that lead to predictions. The existence of this technology is based on the fact that maternal blood contains small amounts of fetal DNA fragments, and these fragments are usually short haploid fragments that can be distinguished from maternal DNA.
Is non-invasive testing reliable?
Although non-invasive testing has been widely used in recent years, some people doubt its reliability and accuracy, believing that non-invasive testing has problems with misdiagnosis or missed diagnosis rates. In fact, the accuracy of non-invasive testing is very high, and studies have shown that its results have a much lower error rate compared with amniocentesis and chorionic villus sampling. Of course, due to the limitations of the technology itself, non-invasive testing also has certain limitations. For example, certain atypical abnormalities cannot be accurately judged and still need to be used in conjunction with traditional testing methods.
Will non-invasive testing be deceived?
Although non-invasive testing is more accurate, like many medical technologies, non-invasive testing also has the problem of \”fooling\”. For example, some institutions exaggerate the achievements of technology in order to make money, or mislead consumers into performing incorrect testing. Therefore, we need to choose a formal institution, carefully read the relevant promotional materials, and conduct detailed analysis, judgment and verification of the commitments, prescriptions and results. In addition, we also need to fully consider the actual situation and needs of ourselves and our children when making the final decision.
Summary
Non-invasive testing is a new type of non-invasive testing technology with high accuracy and low risk. It has been widely used in the diagnosis of fetal chromosomal abnormalities and other aspects. Although non-invasive testing has many advantages, we also need to pay attention to the credibility of the relevant institutions and the reliability of the test results, and make rational purchase and correct use in order to protect the health rights of ourselves and our children to the greatest extent.
