Unusual Sample Viability Test
TADNA can process various types of samples for DNA testing: Buccal swabs, FTA blood cards, and fresh whole blood are considered standard samples. Samples other than standard samples are considered "unusual samples" and must be processed through a viability test to determine if there is sufficient DNA to proceed with a paternity or other type of relationship test.
Five (5) business days from receipt of samples
NOTE: Paternity and relationship testing performed following a viability test require additional processing time and fees. Review the unusual sample fee schedule for pricing and success rate of samples.
Non-Chain of Custody Requirements
Typically, unusual samples are collected by tested parties without a chain of custody. As a result, the case is processed as a non-legal or non-chain-of-custody test.
Review Unusual Sample List for success rates of various samples
If providing an unusual sample, collect the sample as instructed on the list
Examples of requirements for unusual samples
Hair: The laboratory cannot accept hair without roots. DNA obtained for paternity or relationship testing comes from the root of the hair and we need as many hairs as possible
Nails: We require 5-10 clippings
Without proper sampling, we may not have enough sample to yield a DNA profile for testing.