Which laboratory test is used to monitor blood glucose levels?

The laboratory test used to monitor blood glucose levels is Hemoglobin A1c. This test measures the average blood glucose levels over the past two to three months by assessing the percentage of hemoglobin that is glycated or coated with sugar. It provides an indication of how well blood sugar levels have been controlled over time, making it a crucial tool for managing diabetes.

While a complete blood count evaluates overall health and detects various disorders such as anemia and infection, it does not provide information specific to blood glucose levels. Prothrombin time is used to assess blood clotting function, which is unrelated to glucose monitoring. An electrolyte panel evaluates the balance of essential minerals in the body, also not focused on glucose levels. Thus, Hemoglobin A1c is the most appropriate choice for monitoring blood glucose levels over time.