A 55-year-old man has made an appointment to see his family physician because he has been awakening three to four times nightly to void and often has a sudden need to void with little warning during the day
What is the man's most likely diagnosis and possible underlying pathophysiological problem?
A)
Stress incontinence due to damage to CNS inhibitory pathways
B)
Overactive bladder that may result from both neurogenic and myogenic sources
C)
Overactive bladder due to intravesical pressure exceeding urethral pressure
D)
Overflow incontinence that can result from displacement of the angle between the bladder and the posterior proximal urethra
Ans:
B
Feedback:
The man's complaints are typical of overactive bladder, a condition that can result from the interaction of both the nervous control of bladder emptying and the muscles of the bladder itself. His symptoms are not characteristic of stress incontinence, and when intravesical pressure exceeds, urethral pressure overflow incontinence results. The angle between the bladder and the posterior proximal urethra is more commonly a factor in the continence of females.
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