After checking a client's blood glucose, what should the nurse do if it has been above 250 mg/dL for multiple readings?

When a client's blood glucose readings consistently exceed 250 mg/dL, it indicates a potential issue that may require further evaluation and intervention. Notifying the primary health care provider is crucial in this scenario. This action ensures that the healthcare team can assess the situation comprehensively, adjust the treatment plan if necessary, and address any underlying health concerns that might be contributing to the elevated blood glucose levels.

Elevated glucose readings at this level may also signal the risk of complications such as diabetic ketoacidosis, especially if other symptoms are present. Prompt communication with the primary health care provider allows for timely interventions that can stabilize the patient's condition.

In contrast, administering insulin without a provider’s order may lead to inappropriate dosing based on the patient's individual needs and can be dangerous. Withholding prescribed insulin would not be advisable as it could lead to even higher glucose levels and related complications. Modifying the client's diet to low sodium does not address the urgent need to manage hyperglycemia directly and may not be relevant depending on the patient's overall nutritional and medical needs. Thus, notifying the healthcare provider is the appropriate and necessary action in this situation.