A nurse is emptying a client's urinal when she notices the urine is dark amber, cloudy, and has an unpleasant odor. The nurse should identify that these findings are likely to be the result of which of the following?

A. Urinary frequency is incorrect because frequent urination refers to the need to void often. While it can be a symptom of a urinary tract infection (UTI), frequency alone does not explain dark, cloudy, or foul-smelling urine. B. Urinary retention is incorrect because retention refers to the inability to empty the bladder completely. While retained urine can increase the risk of infection, retention itself does not directly cause dark, cloudy, or malodorous urine. C. Urinary tract infection is correct because UTIs commonly cause changes in urine color (dark or cloudy), odor, and sometimes sediment or pus, reflecting the presence of bacteria, white blood cells, and cellular debris in the urine. These findings indicate infection and require further assessment and possible antibiotic treatment. D. Urinary incontinence is incorrect because incontinence refers to the inability to control urine flow. While it may contribute to skin irritation or risk of infection, incontinence alone does not cause urine to appear dark, cloudy, or foul-smelling.