When old men stop peeing so well, consider the poorly designed straw-crusher, the prostate. Chronic outlet obstruction isn’t so great, but it also predisposes to acute prostatitis which in turn can further worsen said obstruction when the gland swells. First thing to do is see how much the gentlemen is backed up, which in turn tells us if he has earned catheterization. Old people and UTIs go together like [insert your own clever comparison].

i think the clue should have been low grade fever and dysuria. Poor guy may have a prostatitis. that dark urine threw me off.