A healthy 55-year-old man with no family history of prostate cancer asks for a PSA test after seeing an online advertisement. He has no urinary symptoms, haematuria, bone pain or abnormal findings on examination. He understands that screening can lead to false-positive results, biopsy and treatment-related harms. What is the most appropriate next step?
Keep going — a set of ten like this one, one at a time.
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