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Test Code LAB4254 Calprotectin, Feces

Important Note

Please note Additional Information section if collecting more than one stool test.

Additional Codes

SQ: CALPRM

MAYO: CALPR

Useful For

Evaluating patients suspected of having a gastrointestinal inflammatory process

 

Distinguishing inflammatory bowel disease from irritable bowel syndrome, when used in conjunction with other diagnostic modalities, including endoscopy, histology, and imaging

Method Name

Enzyme-Linked Immunosorbent Assay (ELISA)

Reporting Name

Calprotectin, F

Specimen Type

Fecal


Shipping Instructions


Preferred shipping temperature is frozen. Refrigerated or thawed specimens received more than 72 hours after collection will be rejected.



Specimen Required


Supplies: Stool container, Small (Random), 4 oz Random (T288)

Submission Container/Tube: Stool container

Specimen Volume: 5 g

Collection Instructions:

1. Collect a fresh random fecal specimen, no preservative.

2. If specimen is sent refrigerate, send immediately after collection.

3. If specimen cannot be sent immediately, freeze specimen, and send frozen.

Additional Information:

1. Separate specimens must be submitted when multiple tests are ordered, with the exception of ELASF / Pancreatic Elastase, Feces. If only a single specimen is collected, it must be split prior to transport.

2. Testing cannot be added on to a previously collected specimen.


Specimen Minimum Volume

1 g

Specimen Stability Information

Specimen Type Temperature Time Special Container
Fecal Frozen (preferred) 7 days
  Refrigerated  72 hours

Reject Due To

Specimens collected from diapers Reject

Reference Values

<50.0 mcg/g (Normal)

50.0-120 mcg/g (Borderline)

>120 mcg/g (Abnormal)

 

Reference values apply to all ages.

Method Description

The QUANTA Lite Calprotectin Extended Range assay is an enzyme-linked immunosorbent assay. Briefly, polyclonal capture antibodies specific for human calprotectin are immobilized on a 96-well plate. Calibrators, controls, and diluted patient samples are added to the wells of the plate. If present, calprotectin will bind to the capture antibodies on the plate. After a wash step, a solution containing an enzyme-labelled antibody is added. After another wash step, a substrate solution that will change color in the presence of the enzyme is added. The absorbance of the color produced is proportional to the amount of calprotectin in the patient sample. Lastly, the control and patient results are calculated based on a curve generated from the kit calibrators.(Package insert: QUANTA Lite Calprotectin Extended Range ELISA kit. INOVA Diagnostics; 04/2019)

Day(s) Performed

Monday through Friday

Report Available

3 to 5 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

83993

LOINC Code Information

Test ID Test Order Name Order LOINC Value
CALPR Calprotectin, F 38445-3

 

Result ID Test Result Name Result LOINC Value
CALPR Calprotectin, F 38445-3

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

Secondary ID

63016

Forms

If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:

-General Request (T239)

-Gastroenterology and Hepatology Test Request (T728)