The albumin/globulin (A/G) ratio is an important metric in the medical field that provides insight into the balance of the two major protein groups in the blood. Derived from the concentrations of albumin and globulin, the ratio is an important diagnostic tool that helps assess liver function, immune system status, and overall health. The normal range for the albumin/globulin ratio is typically between 1.0 and 2.5, with values within this range indicating a healthy balance of these proteins. Understanding the albumin/globulin ratio is critical for patients.