This product is intended for quality control by monitoring accuracy and precision of the quantitative tests on the Cedex Bio and Cedex Bio HT Analyzers. Use this control as described in the instructions of the respective test. Control A Level 2 Bio provides target concentrations in the medium part of the measuring ranges of the following analytes: acetate, glucose, glutamate, glycerol, IgG, lactate, phosphate, total protein, potassium (ISE direct and indirect) , and sodium (ISE direct and indirect).