Getting the Warfarin Sensitivity DNA Test

Genetic variation affects the amount of warfarin that is required for a safe and effective dose

Find out if you are at risk - get tested

Test Type Testing Time Fee

All orders received before 3pm PST / 6pm EST are shipped out the same business day. All orders received after 3pm PST / 6pm EST or on weekends or holidays are shipped out the following business day. 24/7 online status check and account management available for all tests.

The DNA test for Warfarin Sensitivity involves a few simple steps:

Step 1. Order the DNA Test Kit

The kit can be ordered online, by fax or mail, or by phone. Once you place the order, the testing kit will be shipped directly to you.

Step 2. Collect a DNA Sample Using the Swabs Included in the Kit

The kit contains swabs called “buccal swabs”. DNA is collected quickly and easily by rubbing the swabs inside your mouth against the cheek for 30 seconds. Once the DNA is collected, the swabs are placed into the specimen container provided in the kit and returned to the laboratory for testing using the return package included in the testing kit.

Step 3. Check Test Status and Download Results Report

Once your samples arrive at the laboratory, testing begins immediately and results are available in 1 to 2 weeks.

Step 4. Determine warfarin dose using the WarfarinDosing.org website

Patient information along with the results of this genetic analysis are entered into the algorithm and a safe and effective warfarin dose will be determined.