Fecal Occult Blood Testing

CRC Screening Guidelines*

October 2011

Current colorectal cancer screening guidelines discourages use of standard guaiac testing. For those choosing to use fecal blood tests, they recommend either sensitive guaiac or FIT and at an annual frequency. Fecal blood tests are approved for early detection of colorectal cancer and not for prevention (as precursor lesions are not adequately detected).

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CRC Screening Guidelines*

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Jump to section:

• Introduction
• Occult Gastrointestinal (GI) Bleeding: Definition
• Quantity of GI Bleeding Required to "See" Blood in Stool
• Fecal Occult Blood Tests
• Why Detect Occult GI Bleeding?
• Causes of Fe Deficiency in Industrialized Countries (Average %)
• Causes of Occult GI Bleeding
• Fecal Detection of Ingested Blood
• Iron Deficiency or Anemia: Which Test?
• CRC Screening: Target Lesions
• Occult Bleeding From Colorectal Cancer
• Fecal Blood Testing for Colorectal Cancer (CRC)
• FOBT Screening
• Stool Test Detection of CRN in Screen Setting
• Laboratory Testing vs Office Digital Rectal Exam (DRE)
• Evaluation of Fecal Immunochemical Testing (FIT) Assays
• FIT Specificity
• CRC Screening by FOBTs
• CRC Screening Guidelines*
• CRC Screening: Which Fecal Blood Test?
• Soft Indications for FOBT Use?
• Fecal Occult Blood Tests Summary
• Mayo Medical Laboratories Tests
• Questions?
• Disclosures