Perioperative renal dysfunction is defined as a serum creatinine higher than what value?

Perioperative renal dysfunction is an important consideration in the context of surgical procedures, particularly those that involve cardiopulmonary bypass or other conditions that may impair renal function. The definition of perioperative renal dysfunction is typically referenced based on the serum creatinine levels, which serve as a key indicator of kidney function.

The correct choice indicates that a serum creatinine level is considered indicative of renal dysfunction when it exceeds the range of 120-130 mmol/L. This threshold takes into account the normal variations in renal function and provides a clinical standard for identifying potential renal complications that can arise during the perioperative period. At this elevated level, it is essential for clinicians to evaluate the patient's condition more closely, as such an increase in serum creatinine may reflect underlying issues such as dehydration, renal ischemia, or the effects of anesthesia or surgical trauma on renal perfusion.

Understanding these values is crucial for perfusionists and other healthcare providers, as early recognition of perioperative renal dysfunction allows for prompt intervention, which can be vital for improving outcomes in patients who may be at risk during and following surgical procedures.