A 79-Year-Old Man Is Being Evaluated for Frequent Urinary Dribbling

A 79-year-old man is being evaluated for frequent urinary dribbling without burning.Physical examination reveals a smooth but slightly enlarged prostate gland.His PSA level is 3.3 ng/mL.The patient undergoes formal urodynamic studies,and findings are as follows: a decreased bladder capacity of 370 mL;a few involuntary detrusor contractions at a low bladder volume of 246 mL;an increased postvoid residual urine volume of 225 mL;and a slightly decreased urinary flow rate.Which of the following is not consistent with a normal age-associated change?

A) PSA level of 3.3 ng/mL
B) Decreased bladder capacity
C) Involuntary detrusor contradictions
D) Increased postvoid residual urine volume