However, AGTC can test these samples to definitively show that a non-father is genetically not capable of being the biological father of the child in question. Therefore, this form of testing is a screening procedure. It is intended to offer more information than what the individuals may currently have, but not to answer a legal question. If they are related, then both of these possible fathers need to be tested. The preferred samples for the complete AGTC paternity testing battery is two tubes of blood from the mother, the child, and the alleged father.
Blood samples provide the greatest number of possible genetic systems for testing.
Samples from a mouth swab can also be used as an alternative to blood but provide fewer genetic markers. These tests are run in duplicate to assure accuracy. Exclusionary systems are confirmed by retesting prior to the issuance of the report. The testing protocol exceeds that required by our accreditation standards set forth through Clinical Laboratory Improvement Act and the American Association of Blood Banks. This level of testing requires the collection of the samples by a disinterested third party.