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HelpTest Code Calprotectin Calprotectin
Useful For
Elevated levels of fecal calprotectin, in conjunction with clinical findings and other laboratory tests, can aid in the diagnosis of inflammatory bowel disease (IBD) (ulcerative colitis and Crohn’s disease), and in the differentiation of IBD from irritable bowel syndrome (IBS).
Patient Preparation
No special patient preparation required
Collection Method
Raw Stool submission
Minimum Volume
1-5g
Container
Sterile Specimen Container
Acceptable Specimens
Raw stool
Reference or Target Ranges
Negative: < 50 mg/kg
Indeterminate: ≥ 50 - < 120 mg/kg
Positive: ≥ 120 mg/kg
Critical Value
Not defined for this assay
Reasons for Rejection
| Hemolysis Threshold | N/A |
| Icterus Threshold | N/A |
| Lipemia Threshold | N/A |
| Other | QNS, Contaminated, Improperly labeled, Improper specimen type, Improper handling and/or storage and other reasons appropriatly investigated by qualified laboratory personnel. |
Specimen Stability
| Ambient | 4 days |
| Refrigerated (4°C to 8°C) | 4 days |
| Frozen(-70°C to 0°C) | 30 days (not to exceed 4 freeze/thaw cycles) |
Performance Information
| Days and Time Performed | Mondays, Wednesdays 7 AM – 4 PM |
| Expected Turn Around Time | Within 4 business days of arrival in lab |
| Stat Availability | No |
| Performing Bench | ANA |
| Methodology/Method Description | Manual and Bioflash – Indirect Immunofluorescence and Chemilluminescence |