Protein is an essential component that plays a role in many functional activities of the body. Total protein in the blood consists of three main components: albumin, globulin, and a small amount of fibrinogen. Both albumin and alpha globulin as well as beta globulin are primarily synthesized in the liver, which is why the Albumin/Globulin ratio in blood tests is used to assess liver function. Certain diseases can affect the concentration of Albumin or Globulin in the blood; therefore, the ratio of these two indicators reflects the condition and function of the liver.