Prostate-Specific Antigen Levels Among Participants Receiving Annual Testing
IMPORTANCE: Repeating a prostate-specific antigen (PSA) test after an elevated measurement is a guideline-recommended component of the prebiopsy workup. However, it is unclear whether certain patients can be exempted from repeat PSA testing and proceed directly to further workup.OBJECTIVE: To determine yearly PSA variability and implications of repeating an elevated PSA in the Prostate, Lung, Colo