Test Addition

What is an add-on test request?

An add-on test is a request to add additional testing to a previously tested patient’s sample.

Is a new patient sample required?

Depending on the sample requirement, a new sample may not be required. The add-on test will be performed on the patient’s sample in-house at Baylor Genetics.

May I add a test to an in-house prenatal sample?

We do allow test additions to in-house prenatal samples. All prenatal testing needs to be discussed with one of our genetic counselors prior to ordering. Please call 1.800.411.4363 to speak to a genetic counselor regarding your request.

What should be considered when requesting an add-on test?

  1. If the ordering physician has changed, please submit a new requisition form found on our Requisitions page and specify “in-house” as the specimen type.
  2. For Institutional Billing: Please note that the add-on test request MUST include a signature authorization from the party to be billed. Physicians, counselors, and medical professionals, please route your requests through your institutional Send-Out Department, which initially handled the patient sample. An add-on test CANNOT be properly billed if the institutional Send-out Department has not approved the test addition paperwork. For your convenience, use the Test Revision Authorization Form (TRAF).

How do I order an add-on test?

Ordering an add-on test is easy. Simply complete the Test Revision Authorization Form (TRAF) and fax it to 1.800.434.9850.

How do I know my add-on test request has been received and is being processed?

Confirmation of receipt will be provided within 48 hours of your add-on test request. In order to receive confirmation of receipt, please provide your e-mail address and/or phone number in the section indicated on the Test Revision Authorization Form (TRAF).

Will I be notified if there is inadequate sample to perform my add-on test request?

In the event that the existing sample is inadequate to perform the add-on test, a notification will be provided within 72 hours after the add-on request has been received. A cancellation report can be provided upon request.

For any other questions regarding add on testing, please contact our Client Services Department at 1.800.411.4363