The nurse is screening clients for cancer prevention. Which of the following is the recommended screening protocol for colon cancer in asymptomatic clients who have a low-risk profile?
1. Fecal occult blood testing should be performed annually after age 50 years and up to age 75.
2. Digital rectal examinations are recommended every 5 years after age 40 years.
3. Sigmoidoscopy is recommended if symptoms of colon problems are present.
4. A low-fat diet should be implemented after age 50 years.
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