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Colonic Transit Study Diagnostic Process

Easy to administer in-office or via telemedicine, and it helps identify physiological causes

Doctor discussing colonic transit study diagnostic process

Ready for a Closer Look?

If your patient is struggling with chronic constipation, SITZMARKS can help you identify physiological causes and take the next steps toward further testing or a tailored treatment plan. Contact us for more information.

Simplified Transit Time Test

Non-invasive diagnostic tool

Rx only

For single dose only

24 radiopaque markers per capsule (Size 00)

Helps Diagnose Conditions Such As 

Chronic constipation

Outlet obstruction

Hypomotility

Other bowel disorders

Colonic inertia

SITZMARKS capsule containing 24 radiopaque markers

*Image shown is not to scale

What’s in the Capsule?

Each SITZMARKS capsule contains 24 radiopaque markers, which are visible and easy to see before the patient swallows it. The capsule dissolves and releases the markers inside the patient’s digestive tract.

Healthcare Provider Guide on Reading the Potential Results

Normal result

Normal

>80% of the markers are passed by day 5, colonic transit is not grossly abnormal.

The Patient Process

SITZMARKS capsule

Day 1

Patient swallows SITZMARKS capsule containing radiopaque markers.

Sun and Moon

Days 1-4

Patient continues their normal routine as the capsule dissolves and releases the markers inside their digestive tract.

Flat plate abdominal X-ray

Day 5

Patient has a flat plate abdominal X-ray. Healthcare provider will receive radiology results.

Abnormal Transit

Abnormal Transit

When remaining markers are scattered about the colon, condition is most likely hypomotility or colonic inertia.

Potential Blockage

Potential Blockage

When remaining markers accumulate in the rectum or rectosigmoid, this is most likely functional outlet delay, e.g., internal rectal prolapse, anismus.

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