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NBME 22 Answers
A 73-year-old man has difficulty urinating and ...
Area labeled ‘E’
lol i thought it was some kind of urinary retention problem and put H.
How is H wrong? Oxybutinin or tolterodine treat urinary incontinence by blocking M3 muscarinic acetylcholine receptors --> urinary retention. We're just supposed to assume they are talking about BPH here because he is old?
I agree. I picked "H" for that same logic. Does anyone know where we should have come to the conclusion that this was BPH?
they are telling you he's having "difficulty urinating", one of the clinical criteria for BPH is reduced urinary flow rate. this is not incontinence because they are not telling you he leaks at all, just that he pees "a lot"
acetylcholinesterase inhibitors are used in treatment of urinary retention, not urinary frequency