IBSChek - A Commonwealth Laboratories, Inc. Diagnostic

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A Quick, Reliable Blood
Test For a Confident
Diag(know)sis of IBS-D

Ask your doctor about IBSchek–a simple blood test that can confirm if your diarrhea, cramps, pain, or bloating are Irritable Bowel Syndrome with Diarrhea (IBS-D). To learn more about IBS‑D, please check out our Patient Brochure.

Get results fast–your results will be available to your doctor just 24 hours after our lab receives your blood sample.* *All samples received on Friday, Saturday, or a holiday will be analyzed on the next business day from the time of receipt by our laboratory.

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Based on a >90% specificity level for IBS associated with diarrhea as demonstrated in a large, randomized, controlled trial of >2,500 patients.