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Test Code CALP Calprotectin,Stool (ST CALP)

Useful For

Aids in the diagnosis of Inflammatory Bowel Disease (IBD), specifically Crohn's disease and ulcerative colitis. Differentiates IBD from Irritable Bowel Syndrome (IBS) in conjunction with other clinical and laboratory findings.

Synonyms/Keywords

ST CALP, Calprotectin, IBS, IBD

Specimen Requirements

 

Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
No Stool Sterile, Leakproof container Clean airtight container 5 grams 1 gram

 

Collection/Processing Instructions

Random stool collection. 

 

Ship frozen. May refrigerate (2-8oC) up to 3 days before freezing.


Two freeze/thaw cycles are acceptable.

 

Specimen Stability Information

Specimen Type Temperature Time
Stool Frozen Until analysis
Refrigerate Up to 3 days, then must freeze

Rejection Criteria

Fecal specimens in preservatives
Samples with excessive mucous*
Very hard stool*

*if received, can be forwarded to Mayo

Interpretations

The Calprotectin assay has been demonstrated to be a marker of Inflammatory Bowel Diseases (IBD), specifically Crohns disease and ulcerative colitis.

Reference Range Information

Performing Location Reference Range
Marshfield

< 50.0 ug/g                  Normal

50.0 to 120.0 ug/g       Borderline     Re-evaluate at 4-6 weeks.

> 120.0 ug/g                Abnormal      Repeat as clinically indicated.

Marshfield Labs Performing Department

Marshfield Labs Microbiology

Performing Information

   

Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield Tuesday, Thursday 1 day Chemiluminescence Immunoassay/ Liaison XL

CPT Codes

CPT Modifier
(if needed)		 Quantity Description Comments
83993   1    

Outreach CPT Codes

CPT Modifier
(if needed)		 Quantity Description Comments
83993   1    

Ordering Applications

 

Ordering Application Description
Cerner Calprotectin, Stool