Is a swab test just as good as a blood test to determine parternity of a child or can it be wrong?
2007-10-30 11:30:26 · 7 answers · asked by sexxy213 1 in Pregnancy & Parenting ➔ Other - Pregnancy & Parenting
Which Test is Better?
To swab or not to swab--. People call and ask questions like, "Which test is better?" or "I heard that the swab test is not as good as a blood test." What is the answer? Neither. With today's advanced technologies the decision is really yours--it makes no difference which method that you use to perform the test.
Buccal swabs and blood are only vehicles for carrying DNA. DNA is collected from buccal cells using a swab collection and DNA is extracted from white cells when blood is used. The end of the collection result is always DNA.
The question then becomes one of comfort, convenience and noninvasiveness. If you have a child who is under six months old, try to avoid a needle. Although heel sticks and finger pricks can be used, they will cause the child pain. Another obvious advantage of using the swab is that a sample from the baby can be collected almost immediately after birth, avoiding the hassle of having to deal with hospital administration and risk management teams (common when trying to collect cord samples).
Anyone can collect a swab sample because there is no handling of biohazardous materials. No certification is required so even an officer of the court or anyone who is experienced in handling a chain of custody can obtain the sample.
Blood, on the other hand, is biohazard material and must be collected using a needle. It can be painful and, at times, difficult. Intravenous drug users, for example, are difficult to stick, as are small children. The upside to blood is that it is a rich source for DNA. Please remember that there is no such thing as a blood test (excluding HLA testing) or a swab test in the world of DNA testing. There is only the DNA test.
2007-10-30 11:33:19 · answer #1 · answered by [♥]Rae Rae[♥] 5 · 1⤊ 0⤋
My understanding is that the swab test is how most DNA tests are done. Think of it this way....there is hardly any room for a false positive. If there is a match, there is a good chance the test is accurate. There is NO chance that the results are truly negative but for some unknown reason, they came up with a match.
2007-10-30 11:33:41 · answer #2 · answered by CG 6 · 0⤊ 0⤋
A paternity test is fool proof to things like this! they would clearly be able to tell if he had used bleach or any chemical for that matter. Even if he kissed someone before the test there wouldnt be enough DNA in the saliva to mix up the test... they would find it to be female and they use the DNA from the skin on the inside of the cheek, not from the saliva itself! Dont worry yourself, if he is the kids farther they will prove it for you! thats their job! =)
2016-05-26 03:22:41 · answer #3 · answered by ? 3 · 0⤊ 0⤋
A small chance of being wrong, but i recommend to do it more than once just in case to see if the results are the same.
2007-10-30 11:32:52 · answer #4 · answered by Anonymous · 0⤊ 1⤋
If the lab doing the testing is reliable - then once should be sufficient. If you are questioning paternity, I would suggest at least two tests from two different labs to be sure.
2007-10-30 11:34:18 · answer #5 · answered by Bill 3 · 0⤊ 1⤋
i think it would be fine
im not sure tho
but in biology we did this lab thing
and we just added a few chemicals and stuff to our spit (gross i know) and we got our dna from that
2007-10-30 11:33:45 · answer #6 · answered by Anonymous · 0⤊ 1⤋
tests can always be wrong; to be sure I recommend also doing blood work to be certain
2007-10-30 11:35:09 · answer #7 · answered by Anonymous · 0⤊ 2⤋