Retest Request Form

Retest specimens currently at the laboratory.

RTL Account Change Form

If you need to add test requests to a specimen that has been reported, please fax a completed Retest Request Form to the Toxicology Support Services Department at 707.577.0365.

Test requests will not be made until a signed copy is returned via fax. This form must be signed by authorized personnel. Appropriate charges will be applied to your account based on the test services requested.

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The Resource Library includes information available in our printed Reference Guide, delivered to all new clients. To download a PDF of our Reference Guide, click here.