With the development of today's economy and changes in people's attitudes, the demand for fetal paternity testing is increasing. First of all, we want to tell you that amniotic fluid paternity testing can be done, but compared with conventional paternity testing, the price is slightly higher, the process is relatively complicated, and the sample collection is more complicated. So, how to do fetal paternity testing?
The first step is to determine the gestational age; Amniotic fluid paternity testing generally requires four months after conception (starting from the first day of the last menstrual period, after 16 weeks), with 16-24 weeks being the best time for collection. This is because at this time, the fetus is small, there is relatively more amniotic fluid, and the fetus floats in the amniotic fluid with a wide amniotic fluid band around it. When extracting amniotic fluid, it generally does not affect the fetus. The samples taken at this time are more accurate and also safer.
The second step is to choose a legitimate paternity testing institution; Regardless of the type of paternity test, it is important to choose a reputable paternity testing institution. There are three methods to choose from: first, check if the institution has complete qualifications; Secondly, check if the appraisal institution has a legitimate DNA laboratory; Finally, check if the appraisal institution has professional appraisers with physical evidence appraisal qualifications.
The third step is to select samples; That is to say, amniocentesis surgery is performed on pregnant women to extract amniotic fluid. Here we need to emphasize a fetal sample. Generally, amniotic fluid is taken for identification, and the identification agency entrusts it to the corresponding hospital for amniocentesis surgery, which costs about 1000 yuan.
The fourth step is to send the sample for testing; You can send samples by mail, go for testing yourself, or even personally go to the appraisal institution for sampling.
The fifth step is to wait for the results; Generally, the results can be obtained within 5-7 working days, subject to the standards of the appraisal institution.
Although amniotic fluid paternity testing is no longer a rare thing, it is a doubt about the trust relationship between expectant parents, and can even affect their relationship and family. Moreover, amniocentesis surgery is also harmful to pregnant women. It is particularly important that pregnant women should not catch a cold, do not take a shower or have sex the night before the puncture, and there is a 0.2% chance of miscarriage during the puncture process.
