Screening for Colorectal Cancer in Average Risk Patients: Guidelines and Recommended Tests

Criteria for an avg risk CRC patient

No fhx of advanced polyps of CRCNo personal history of colon cancer, IBD, or radiation to the abdomenNo personal or fhx of related CRC syndromes

An average risk patient for colorectal cancer (CRC) is an individual who has no known hereditary syndromes or personal history of inflammatory bowel disease. Generally, the screening guidelines for an average risk CRC patient are as follows:

1. Age: Average risk individuals aged 45 years or older should receive regular screening.

2. Tests: The preferred screening tests for average risk individuals include:

– Stool-based tests: These tests can detect small amounts of blood or DNA that are shed from precancerous or cancerous cells in the colon and rectum.

– Colonoscopy: This is an invasive procedure that involves the examination of the entire colon and rectum for polyps or cancer.

– Flexible sigmoidoscopy: This is similar to colonoscopy, but only examines the lower portion of the colon.

– CT colonography (virtual colonoscopy): This is a non-invasive imaging test that creates a detailed picture of the colon and rectum.

3. Frequency: For average risk individuals with a negative screening result, screening should be repeated every 5-10 years depending on the chosen test and guidelines.

4. Symptoms: Individuals with family history of CRC or with symptoms such as bright blood in stool, abdominal pain, a persistent change in bowel habits, unexplained weight loss, and fatigue may require earlier or more frequent screening.

It is important to note that these recommendations may vary based on individual factors such as personal or family history of CRC. It is always recommended to discuss screening options with a healthcare provider to determine the best approach based on individual circumstances.

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