Elemental Analysis nutritional test is for patients suspected of recent toxic element exposure and for evaluation of intracellular mineral nutrient status. This toxic element exposure test measures RBC intracellular concentrations of toxic elements and nutrient elements. The vast majority of chemical reactions governing cellular processes are, in turn,regulated by enzymatic reactions. Enzymes usually require mineral cofactors such as magnesium and zinc to operate. Toxic elements, on the other hand, can interfere with enzymatic reactions and disrupt cellular activities. Thus, both element insufficiencies and excesses have a significant impact on health.