Which laboratory abnormality should the nurse notify the healthcare provider about before a client’s surgery?

Prior to surgery, it is crucial to monitor electrolyte levels, particularly potassium, due to its significant role in cardiac function and muscle contraction. An abnormal potassium level can lead to serious complications during and after surgery, such as arrhythmias, which can be life-threatening.

Elevated potassium levels (hyperkalemia) may necessitate urgent intervention—such as the use of medications or adjustments in anesthesia—before proceeding with the surgical procedure to prevent potential cardiac complications. Conversely, low potassium levels (hypokalemia) can also cause weakness and increase the risk for complications during surgery.

While other laboratory values like sodium, BUN (Blood Urea Nitrogen), and creatinine are important indicators of metabolic and renal function, they do not hold the same immediate risk factors pertaining to cardiac stability in the context of surgery. Thus, any abnormal potassium level is a critical finding that warrants prompt notification to the healthcare provider to ensure the safety of the surgery.