Viability Test
A viability test analyzes an unusual biological sample to determine if it has enough viable DNA to use in a DNA test. Viability testing is
often used when one of the tested parties is unavailable.
When is viability testing used?
Viability testing is used when one of the necessary tested parties is missing, deceased, or otherwise unavailable for
buccal swabbing
 , and samples that may contain his or her DNA are available.
What samples can be collected?
Many different types of samples can be tested for viability. Common samples include hair, blood, and other human tissues, as well as
items that the person has used, such as a toothbrush, which may contain traces of his or her biological material.
To submit a sample for viability testing, many DNA testing companies require that you contact them to discuss your particular sample. They will need to
know the size, age, and condition of the sample.
How long can the results take?
The turnaround time for a viability test depends on the type of sample tested. With many samples, most companies can release the
viability test results 9 business days after they receive the samples.
What is the typical price range for viability testing?
The price for viability testing varies from sample to sample. When you contact a DNA testing company to discuss your
sample, you can ask for an estimate for viability services.
What else should you know about viability testing?
Several considerations should be made in order to prepare and store samples to be submitted for viability testing.
- Protect the sample from certain environmental factors, as they can affect the DNA's viability. Chemicals, heat, bacteria,
and other environmental factors can degrade the DNA in the sample.
- Ensure that the root is still attached to any hair sample. The root is necessary for any nuclear DNA testing.
- Make provisions for storing and sending the sample, based on the sample type. You should call a DNA testing company as soon
as possible to determine the best storage and shipping process for your specific sample. For example, some samples may need to be refrigerated
or dried before they are sent to the laboratory for testing.
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