Days Set Up
Monday, Wednesday, Friday
Analytic Time

8 hours

MiChart Code
Calprotectin, Fecal
Soft Order Code

Test Updated:


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Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

Learn about how to properly label and where to ship specimens.

Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

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Test Overview

Test Methodology

Chemiluminescent Immunoassay

Test Usage

Evaluation of patients suspected of having a gastrointestinal inflammatory process. Aids in distinguishing irritable bowel disease (IBD) from irritable bowel syndrome (IBS), when used in conjunction with other diagnostic modalities, including endoscopy, histology, and imaging.

Reference Range

Negative: <50.0 mg/kg
Indeterminate: 50.0 – 119.9 mg/kg
Positive: >=120.0 mg/kg

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Collection Onsite

Collect random stool sample. If multiple tests are ordered, them must each have their own sample. Sample must reach special chemistry laboratory within 96 hours (4 days) of collection.

Collection Offsite

Collect random stool sample and refrigerate. Sample must reach special chemistry within 96 hours (4 days) of collection. Separate specimens must be submitted when multiple tests are ordered. Specimen cannot be added on to a previously collected specimen. Specimen cannot be collected from a diaper. If a specimen delayed longer than 4 days, freeze.

100ml Plastic Specimen Container
Normal Volume
5 grams stool
Minimum Volume
1 gram stool

Billing Information

CPT Code
Pro Fee Code

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.