Many studies have been developed by the scientific and medical community to learn more about COVID-19. Although studies have advanced, it is common to note that there are still some misconceptions, especially as the information moves from scientific to widespread use in hospitals, clinics, laboratories, and especially the population. Thus, the objective of this study was to present the testing process for the detection of SARS-CoV- 2 in the patient, paying attention to the key dates and possible diagnoses. To achieve this goal, a process diagram was founded to establish the path of detection and diagnosis. Also, a table for interpreting the results has been prepared. The results collaborate with a clearer understanding of the diagnostic process and expand the understanding to other areas, mainly those that need binary inputs to contribute to the fight against the virus, such as computing, mathematics, and engineering.