They are kits used for diagnostic purposes in the analysis of body fluids such as blood, urine, or cerebro-spinal fluid in clinical biochemistry and hematology laboratories. Consequently, the diagnostic kits help to determine the levels of analytes that are significant in diagnoses for instance enzymes, metabolites, or electrolytes to identify important industrial microorganisms or to diagnose infectious diseases. In addition, they provide crucial data with regard to the specification of diagnosis and monitoring of the treatment process.
The diagnostic kits are ready to use and can be used in all forms of automatic analyzers as well as laboratory procedures. Observations are done on microorganisms that are subjected to a set of conditions and their reactions monitored in terms of change in color or evolution of gas.