HbA1C serves as a diagnostic tool for diabetes, providing insights into blood glucose control over the preceding three months by gauging sugar molecules affixed to red blood cells. Simultaneously, a non-fasting random blood glucose test is conducted. It’s important to note that the normal threshold for random blood glucose differs from that of fasting blood glucose.
In the event of abnormal results in random blood glucose or HbA1C tests, a fasting blood glucose test might be necessary to validate a diagnosis of diabetes or prediabetes.