Why do test results vary between different labs?

Different assays are available for many of the health tests that we offer at DNA Tests Direct. Hence, variation is normal between laboratories that utilize different assays to the validated and approved assays available at DNA Tests Direct. For this reason, we do not recommend changing between different laboratories for serial testing.

DNA Tests Direct follows strict validation and approval criteria to ensure that all of our health test assays are providing results at an acceptable level of precision.