How to collect the sample

DNA strand for Precision Medicine

How to collect the sample

For the patients and families

If you have received the Sample Collection Package in the mail from RPRD, it is because your healthcare provider has ordered a pharmacogenomics testing for you. The test will be running using your (self-collected) sample (saliva or buccal swab). Please follow the instructions below to collect and ship your sample back to RPRD for testing and analysis.

Please understand that not following the instructions may result in issues that could impact the quality of your testing result. Subsequent re-collection of your sample may cause delay in testing and clinical decision making.

If you have any questions about sample collection, packaging and shipping, please call (414) 316-3097 or email

Once the testing is complete, the test results will be delivered directly to your healthcare provider only. Please understand that RPRD does not consult patients directly on their test results, clinical diagnoses or treatment decisions. These types of questions will always be deferred to your healthcare provider.


Read carefully and follow the “User Instructions” in the collection kit in order to collect your saliva or buccal sample.

Please DO NOT eat, drink, smoke or chew gum for 30 minutes before collecting your saliva or buccal sample.





Complete and sign the “Patient Declaration Form”.

In some cases, other forms such as the Test Requisition Form, Advance Beneficiary Notice of Noncoverage (ABN) or Patient Election to Self Pay Form may require patient’s signature. Please follow the specific instructions enclosed in the Sample Collection Package.

All the necessary documents must be completed and returned in order for your test to be processed.


Prepare the shipping package according to the “Sample Package and Shipping Instructions”.


Ship the package back to RPRD Diagnostics on the same day of the sample collection via UPS. The mailer included in the package is pre-paid and pre-addressed.

Click here to find a convenient UPS drop off locations.

Sample Collection Instructions
Sample packaging and shipping instruction

Still have questions?

If you have any questions about the sample collection and shipping, please contact us or call (414) 316-3097.


Learn more about the WPS testing

WPS is the most comprehensive PGx testing available on the market in terms of the number of genes and variants that can be tested.