Men aged 45 – 49 should have a baseline PSA test. 1  If the PSA level is 3 ng / mL or higher, men should talk with their doctor about having a biopsy of the prostate. 2  If the PSA level is between 1 and 3 ng / mL, men should see their doctor for another PSA test every 2 - 4 years.en aged 71 – 75 should talk with their doctor about whether to have a PSA test. The decision whether to have a PSA test should be based on past PSA levels and health of the man. Men 76 and older. Prostate cancer screening is not recommended for men aged 76 or older.