At what age does screening for colorectal cancer usually begin for adults at average risk?

Answer and explanation

Correct answer: D. 45 years

  1. Step 1: Current guidance starts screening at 45 for average-risk adults. Step 2. Those with a family history may start earlier. Answer: 45 years. Why not the others: 25 and 35 are too early for average risk, and 65 is too late.

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