A nurse is caring for four older adult clients in an extended care facility. Which client should the nurse prioritize for monitoring signs of urosepsis?

A client with ketonuria and a history of diabetes presenting with increased thirst but no mental status changes.

A client experiencing malaise and a low-grade fever but maintaining baseline cognitive function.

A client reporting epigastric pain and abdominal bloating without changes in mental status.

A client with a history of urinary catheterization who shows new-onset confusion and urinary incontinence.