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Single-Marker GI Add-Ons
Updated over a week ago

Test Details

Lab Company: Doctor's Data
โ€‹ Sample Type: Stool
โ€‹ Collection Location: At Home

These instructions are for the Beta-glucuronidase, Calprotectin, Secretory IgA, Lysozyme, Lactoferrin, H. pylori Antigen, Elastase, Macroscopic Worm ID, and Zonulin add-on tests. These single-marker tests investigate individual biomarkers in the gastrointestinal system to better understand and diagnose gastrointestinal diseases.

Key Details

  • These tests are add-ons. See specific details and instructions on the page of the specific stool test you will be taking.

  • Ship your samples Monday - Friday only.

Applicable Tests

  • These instructions apply to the following add-on tests:

    • Beta-glucuronidase

    • Calprotectin

    • Elastase

    • H. pylori Antigen

    • Lactoferrin

    • Lysozyme

    • Macroscopic Worm ID

    • Secretory IgA

    • Zonulin

Collection Instructions

Requisition & Payment

  • Your kit has been prepaid. You DO NOT need to pay anything extra.

  • Instructions on how to fill out your requisition can be found HERE.

    • Since you pre-paid for your tests, you do not need to fill in the payment information on any of these forms.


  • Ship Monday - Friday only.

    • If you cannot ship the sample the same day, leave the cardboard shipping box containing the sample in the freezer until ready to ship.

  • Make a note of the tracking number so that you can track your sample back to the lab.

  • Ship via FedEx.

    • To schedule a FedEx pick-up, call 1-800-463-3339.

      • After the automated greeting, say, "Schedule a pick-up."

      • At the next prompt, say, "Schedule a pick-up with a Label or Stamp."

      • Say, "yes," when asked if the word "Stamp" is on the waybill.

      • You will then give your address information for the pick-up.

    • DO NOT place specimens in a FedEx drop box.


  • Results should be released to your provider 3-8 business days after samples are received at the lab. We cannot guarantee processing time.

  • Your provider will notify you when your results are in and schedule a follow-up appointment for you to review them together.

More Resources


For general questions, email Rupa Health at For test-specific questions, contact Doctor's Data by calling 800-323-2784 or emailing customer support at

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