BÜHLMANN Laboratories AG, is proud to announce it received United States Food and Drug Administration (FDA) 510(k) clearance of its BÜHLMANN fCAL® turbo.

The BÜHLMANN fCAL® turbo is an in vitro diagnostic assay intended for the quantitative measurement of fecal calprotectin, a neutrophilic protein that is a marker of intestinal mucosal inflammation, in human stool. The BÜHLMANN fCAL® turbo aids in the diagnosis of inflammatory bowel disease (IBD), specifically Crohn’s disease (CD) and ulcerative colitis (UC) and aids in the differentiation of IBD from irritable bowel syndrome (IBS) in conjunction with other laboratory and clinical findings.

Speed, Quality, Flexibility in Calprotectin Quantification

BÜHLMANN fCAL® turbo, a turbidimetric immunoassay, is a flexible solution to be applied on most clinical chemistry analyzers. Turbidimetric technology is a milestone in fecal calprotectin quantification. This technology allows very rapid and flexible random access testing, and is the ideal solution for high throughput applications in clinical and research laboratories. Unique in speed, quality, and flexibility, this assay offers reliable information to aid clinicians in selecting patients for further diagnostic procedures.

Standardizing this test against the well established, FDA 510 (k) cleared, BÜHLMANN fCAL® ELISA, has generated a robust assay that is accurate, precise and efficient.

Focus on what really matters – calprotectin results you can stand behind. Increase your efficiency and cost savings with the fastest fCAL assay the FDA has registered.


  • Short Analysis Time:
    • Time to first result: 10 minutes
    • Throughput: 192** results/hr (analyzer dependent)
    • Reduction in re-runs: automated dilution (measuring range of 30-10,000 μg/g)


  • Flexible and Individual Solutions:
    • Applicable on most clinical chemistry analyzers
    • A large and growing list of validated protocols
    • Safe Stool Extracts

BÜHLMANN fCAL® turbo Benefits

  • Easy-to-use assay kit (first result within 10 minutes)
  • Reagents are ready to use
  • Reagent on board: stable for up to 60 days
  • Kit includes calibrators and controls
  • Analytical Sensitivity: <22 µg/g Calprotectin in fecal sample
  • Measurable range 30- 10,000 µg/g

BÜHLMANN fCAL® turbo Citations

View a compilation of BÜHLMANN fCAL® turbo Citations from a wide variety of interesting publications, studies, and posters for our assay. Find valuable highlights from each publication and links to each article.

Choose BÜHLMANN fCAL® turbo Because Accuracy is What Matters

Robust, Validated, and Published

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