Category: Tcells Monday, January 11, 2021 Serum vs Intracellular Nutritional Testing: The Difference Matters What is serum testing? A serum test is simply a laboratory test that detects something in the liquid (which would essentially be the plasma) part of blood, as opposed to a laboratory test that detects something in the solid part (which would be the red and white blood cells) of the blood. Since blood is made of both cells and plasma, the term “blood test” is not very specific, as it could refer to either. However, the term “serum test” is specific... Read More at Monday, January 11, 2021 Micronutrients and Immune Health intracellular micronutrient status Functional Medicine Tcells Cell-Mediated Immune Function Serum Testing