Exagen currently provides assays for diagnosis of Irritable Bowel Syndrome (eXaIBS™), Inflammatory Bowel Disease (eXaIBD™) and the differentiation of Ulcerative Colitis from Crohn's Disease: (eXaUC/CD™). For information regarding ordering eXaIBS, eXaIBD, or eXaUC/CD, please contact Exagen client services at 1-866-392-4361.

We also provide the AVISE MCV which is a specialized lab blood service to help diagnose rheumatoid arthritis and AVISE PG to measure how well your body metabolizes methotrexate for treatment of rheumatoid artritis. Please contact Exagen ClientServices (866-392-4361) for more information. Or to learn more about AVISE testing, please visit our sister website, www.AviseTest.com.

Please complete all fields in the Test Requisition. The requested information is necessary for proper test interpretation.

Populatable PDF version - open to type in patient information, save and print out. The print out should be sent to the lab along with the blood sample.

A whole blood specimen is required. A whole blood specimen is drawn in the PAXgene blood tube provided in the specimen collection kit. (fasting is not necessary). The specimen storage conditions are room temperature and no centrifugation or specimen processing is required. The tube should be labeled at a minimum with the patient's last name, first initial, and date of birth. Please follow the instructions specified in both the PAXgene Instructions and the Patient Preparation and Specimen Requirements sheets. Additionally, an online PAXgene Instructional Video will provide further preparation details.

Exagen Diagnostics will send patient's results to the ordering physician within 7 business days of specimen receipt.