The healthcare provider prescribes 5% Dextrose Injection, USP with 20 units of regular insulin for a client with a serum potassium level of 6.0 mEq/L (6.0 mmol/L) and glucose level of 180 mg/dL (10.0 mmol/L). Which evaluation is most important for the nurse to include in this client's plan of care? Reference Range Potassium [Reference Range: 3.5 to 5.0 mEq/L (3.5 to 5.0 mmol/L)] Glucose [Reference Range: 0 to 50 years: 74 to 106 mg/dL (4.1 to 5.9 mmol/L)]

The client's serum potassium level is elevated at 6.0 mEq/L (6.0 mmol/L), which is above the normal reference range of 3.5 to 5.0 mEq/L (3.5 to 5.0 mmol/L). Hyperkalemia can have significant cardiac implications, including the potential for life-threatening dysrhythmias. Therefore, close monitoring of the serum potassium level is crucial to assess the effectiveness of interventions and ensure that potassium levels are within a safe range. While monitoring glucose levels before and after meals is important for clients receiving insulin therapy, in this scenario, the primary concern is the elevated potassium level. The nurse should prioritize frequent assessment of the serum potassium level to guide appropriate management and prevent complications associated with hyperkalemia. Monitoring and documenting strict intake and output are important for assessing fluid balance and renal function, but in this case, the elevated potassium level takes precedence as it poses a more immediate risk to the client's well-being. Obtaining a 12-lead electrocardiogram (ECG) daily may be indicated in some cases of hyperkalemia, as certain ECG changes can be associated with elevated potassium levels. However, the more critical aspect is monitoring the potassium level itself, as ECG changes can occur rapidly and may not always be detectable on a daily basis.