Calprotectin
Calprotectin is a protein released by neutrophils and macrophages. It is commonly measured in stool samples to assess intestinal inflammation, particularly in inflammatory bowel disease (IBD) such as…
Category: Other
Also known as: kalprotektin
Reference range: 0–50 µg/g (Source: ABIM)
Standard unit: µg/g
High values may indicate
Elevated levels may indicate intestinal inflammation, IBD, or other gastrointestinal conditions requiring further evaluation.
Low values may indicate
Normal levels suggest absence of significant intestinal inflammation.
Frequently asked questions
- What is a normal Calprotectin level?
- A typical reference range for Calprotectin is 0–50 µg/g (source: ABIM). Reference ranges vary by laboratory, age, and sex, so always compare against the range on your own lab report.
- What units is Calprotectin measured in?
- Calprotectin is most commonly reported in µg/g. Labs in different countries may use other units — you can convert between them with BloodId's blood test unit converter.
- Where do Calprotectin reference ranges come from?
- BloodId uses ABIM standard reference ranges and educational information from MedlinePlus (see our methodology). Reference ranges still vary by lab, age, and sex, so always compare against your own report.
- Can I track Calprotectin over time?
- Yes. Upload results from any lab and BloodId charts your Calprotectin over time against its reference range, so you can see whether the trend is rising, falling, or stable.
Related biomarkers
Source: BloodId admin-reviewed
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