Theranostics is the application of a specific diagnostic test that identifies a specific molecular target on a tumour or other disease-causing entity. The pathophysiology of each illness comprises unique biological pathways that can be addressed with diagnostic testing.
Diagnostic pictures of a given molecule then reveal the existence of certain mutations or receptors (in the case of cancer), which may subsequently be targeted with therapeutic medicines. This method reduces trial and error and can be utilised to provide patient-specific therapy at the appropriate moment. The use of exact dosage calibration and a finely focused strategy in the treatment of chronic illnesses like cancer might be extremely beneficial.