A nurse is caring for a client who has type 1 diabetes mellitus. The nurse misread the client's morning blood glucose level as 210 mg/dL instead of 120 mg/dL and administered the insulin dose appropriate for a reading over 200 mg/dL before the client's breakfast. Which of the following actions is the nurse's priority?

A. Monitor the client for hypoglycemia: The nurse administered a higher insulin dose based on the incorrect blood glucose reading, the client is therefore at risk of hypoglycemia due to the excessive insulin. Close monitoring for symptoms of hypoglycaemia such as shaking, confusion, or sweating is crucial. B. Notify the nurse manager: While the nurse manager should be informed of the mistake, the immediate priority is the safety of the client. The client’s risk of hypoglycemia must be addressed first before reporting the incident. C. Give the client 15 to 20 g of carbohydrate: This action would be necessary if the client begins to show signs of hypoglycemia, but it is not the priority action at this moment. First, the client should be closely monitored for symptoms of hypoglycemia to determine if carbohydrates are needed. D. Complete an incident report: Completing an incident report is a necessary step after the event, but the immediate priority is ensuring the client’s safety by monitoring for hypoglycemia. This can be done after the client is stable.