Which report information about a postoperative client requires immediate follow-up by the nurse?

In the postoperative setting, monitoring urinary output is essential for assessing kidney function and fluid balance. The presence of dark, cloudy urine can indicate potential complications such as urinary tract infections, dehydration, or other underlying issues.

When examining the information provided, the indication of 40 ml per hour of dark cloudy urine over the last four hours signals an abnormality that necessitates immediate follow-up. Cloudy urine often contains bacteria or other debris, and when combined with the postoperative context, it raises concerns about potential infection or complications that could affect the patient's recovery.

Furthermore, dark urine usually suggests concentrated urine, which may occur due to dehydration or other metabolic changes, heightened by recent surgery. In this case, the urine output is also insufficient, considering the postoperative standard for adequate urinary output typically exceeds 30 ml/hour.

Immediate evaluation would involve not only a further assessment of the urinary system but also a holistic view of the patient's postoperative status regarding fluid intake, vital signs, and overall clinical presentation to prevent further complications.