As you carry out test at PaternityUSA or even at other part of the world, the accuracy of the paternity test can be compromised by some activities that you may indulge in before or after the procedure. That’s why you need to know them and above all avoid them for great results. So, without further ado, let’s see some of the things that may tamper with the accuracy of your home paternity test. Take a look.

  1. Medical Procedures

It is important to note that some medical procedures such as bone marrow transplants and blood transfusion often introduce the DNA of somebody else to the recipient’s body. While the effect may last for a while, it might also take a longer time in others. Consequently, as far as the two DNAs co-exist, the DNA paternity test may not be an ideal choice. That doesn’t mean that a conclusive DNA test can’t be conducted, but medical assistance while at it is necessary for accurate results.

  1. Cross-Contamination

Ensure that two swabs belonging to different individuals don’t meet before or after collecting DNA samples to avoid cross-contamination. Failure to do so will combine DNAs from both individuals, and under such circumstances, expecting accurate results is absurd. Don’t touch the swabs meant to be used on someone else. If you have to do the swabbing, hold the tips and just that. Dropping the swab will also contaminate it, resulting in inaccurate results.

  1. Spitting on the Swab

Yes, there is a huge difference between collecting saliva and cheek cells. Spitting collects the former, whereas what is recommended for DNA testing. Why cheek cells and not saliva? First of all. Robots that test relationships are designed to extract a DNA sample from cheek cells, and it is only right that it does what it is made more. Secondly, DNA on cheek cells has a high quality, not forgetting relatively concentrated. For that reason, ensure that you don’t spit on your home DNA test for accurate results.

  1. Other Activities

Ensure that you don’t put anything in your mouth at least one hour before carrying out the paternity test. At home, a DNA test sshouldn’t be conducted after eating, drinking or smoking. In case you are wondering, tobacco byproducts, toothpaste, liquid, and food don’t have what it takes to alter the DNA. However, these particles can easily mask the DNA, making them too weak to be used for the test. Equally important, don’t nurse your baby an hour before the test. Once you avoid introducing foreign particles, the cheek cells collected will be perfect for the job, giving accurate results.


Some people are too fast to judge DNA tests when they are so accurate. Others end up getting inaccurate information simply because they introduced foreign things to the DNA samples. For that reason, ensure that you avoid doing the above things when conducting paternity tests. As for the medical procedures, since you can’t change such things, the best thing you can do is consider other alternatives. Remember not to spit on the swab but rather target the cheek cells. Once you follow all that, the results you get will be perfect.