How to do the most accurate paternity test and how to do the prenatal non-invasive paternity test?

Introduction Now almost everyone knows the word paternity test, which is used to detect whether a child is biological or not, but do you know that the current technology can even detect who the child in the belly is? Non-invasive paternity test is a new paternity test method, which has many advantages compared with the traditional prenatal non-invasive paternity test method to extract amniotic fluid penetration.

What is the principle of prenatal non-invasive paternity testing? Prenatal non-invasive paternity testing is the earliest and safest paternity testing method at present. By extracting free DNA fragments from maternal venous blood (including free DNA of infants) for detection and biological information analysis, the genetic DNA information of infants can be obtained. The safety device can effectively reduce the risk of infant infection and abortion, which is acceptable to most pregnant women and has little psychological burden.

What is the accuracy of prenatal non-invasive paternity test? At present, non-invasive paternity test is the most accurate. Paternity identification is achieved by comparing and analyzing the genetic loci of the baby and assuming the DNA information of the father. The negative paternity test accuracy is nearly 1.000%, and the positive paternity test accuracy is over 99.99%. The results obtained are completely consistent with those obtained after the baby is born.

What do you need to prepare for prenatal non-invasive paternity test? Generally, it is necessary to determine that the pregnancy has reached more than 5 weeks before non-invasive paternity test can be carried out. If pregnant women do non-invasive paternity testing, they will be pregnant for less than 5 weeks, and they can do it when they are pregnant, so that the baby can be born.

When it is determined that pregnant women are twins, it is necessary to go to the hospital to check whether they are identical twins or fraternal twins (identical eggs can only have one father, and fraternal eggs may have different fathers). Twins will affect the use of the kit, and the difficulty of the detection process is also different. It is necessary to confirm singletons and twins in advance.

Pregnant women do not need an empty stomach for prenatal non-invasive paternity testing, and pregnant mothers only need to ensure a normal diet.

How much is a "prenatal noninvasive paternity test"? Because DNA paternity is very important, so many people because the price of paternity test is very expensive, in fact, this is not the case. The state has strict regulations on the prices in DNA paternity, and generally there will be no cases where the prices are too high or too low. Of course, only formal paternity testing institutions have it. So you can rest assured that prenatal non-invasive paternity testing is safe and inexpensive, which is completely within the affordability of ordinary people. The basic price is around 6000 yuan, and the price is related to whether you are in a hurry or provide samples of several people for identification.

Consult and understand the prenatal non-invasive paternity test process, and make an appointment to apply.

Because prenatal non-invasive paternity testing is a relatively new pregnancy test, it is best to consult a qualified institution before doing it (paternity testing is under the jurisdiction of the Judicial Bureau, which requires the qualification of forensic material evidence, and the hospital belongs to the Ministry of Health), and then the appraisal institution will provide you with professional advice according to your situation; After you know it clearly, you can make an appointment for identification (anonymous).

Sample collection

Pregnant women's sample: 10ml venous blood is extracted from the arm, which does not need to invade pregnant women's body, thus relieving their psychological pressure. (Venous blood of pregnant women must be a professional noninvasive free DNA blood collection tube, which can be used for identification. )

Male samples: if you don't want to be known by men, pregnant women can extract one of the samples containing human DNA tissue for identification. Such as blood stains (used band-AIDS), smoked cigarette butts, hair (hair follicles need to be removed), nails, semen, chewed gum, worn underwear, toothbrushes, water cups, etc.

Specimen inspection

Prenatal non-invasive paternity testing does not require on-site sampling by institutions, and can be selected independently according to the actual situation: ① on-site sampling, ② on-site sampling by appointment and self-sampling (it can be anonymously mailed to the laboratory of the appraisal institution).

In a few days, the results will be reported. The process of extracting DNA from prenatal non-invasive paternity test is very complicated, and accurate detection is needed at 13000 locus. This experiment is very difficult. Generally, the results will be reported within 5-7 working days after all samples are successfully received (confirming that the samples meet the testing standards). If you can't wait to know the result, you can also apply for identification of expedited service, but the customer has to bear the corresponding expedited expenses. Express the results within 48 hours at the earliest. The appraisal results can be informed by telephone, SMS, email, etc. The appraisal report can be mailed to the client himself or taken by himself.

Conclusion These are the contents that must be understood in prenatal non-invasive paternity testing. In short, the emergence of prenatal non-invasive paternity testing technology has brought a lot of good news to many pregnant mothers and families who don't know who the baby's biological father is.