Blood tests to determine Native American ancestry can be obtained through a doctor, according to the Association on American Indian Affairs, or through a DNA testing center such as the DNA Diagnostics Center. Native American DNA testing helps determine whether an individual comes from Native American ancestry and can provide confirmation of familial relationships.
In the DNA test, laboratories locate specific markers that are common among all people of Native American ancestry. They can also find common DNA between people in the same family. For example, a DNA test can confirm paternity or determine whether two people are siblings, which can be important for medical or legal issues.