C. Digital rectal examination (DRE) Digital rectal examination is part of a regular physical examination and is a primary means of assessing symptoms of decreased urinary stream, which is often caused by benign prostatic hyperplasia in men over 50 years of age. The uroflowmetry helps determine the extent of urethral blockage and the type of treatment needed but is not done on a regular basis. Transrectal ultrasound is indicated with an abnormal DRE and elevated PSA to differentiate between BPH and prostate cancer. The PSA monitoring is done to rule out prostate cancer, although levels may be slightly elevated in patients with BPH. More test answers on https://studyhippo.com/lewis-chapter-54/